UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of May 2020

Commission File Number: 0-55139

QUATERRA RESOURCES INC.
(Translation of registrant's name into English)

1100-1199 West Hastings Street
Vancouver, BC V6E 3T5 Canada

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

[ x ] Form 20-F   [   ] Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): [            ]

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): [              ]


SUBMITTED HEREWITH

Exhibits

Exhibit   Description
     
99.1   Technical Report on the Groundhog Project dated May 13, 2020
99.2   Consent of Qualified Person - Nicholas Van Wyck, Ph.D.

 


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

  QUATERRA RESOURCES INC.
  (Registrant)
     
Date: May 26, 2020 By: /s/ Lei Wang
    Lei Wang
     
  Title: Chief Financial Officer

 



Quaterra Resources Inc.: Exhibit 99.1 - Filed by newsfilecorp.com

NI 43-101 technical report on the Groundhog Project, Bristol Bay
Region, southwestern Alaska
60°04’N / 155°08’ W

 

 

 

prepared for:

   

 

Quaterra Resources Inc.

Suite 1100 - 1199 West Hastings Street
Vancouver, B.C., Canada
V6E 3T5

 

 

prepared by:

Nicholas Van Wyck, Ph.D., CPG#10553

Sisyphus Consulting

 

 

Effective Date: April 28, 2020

Report Date: May 13, 2020



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

1 Summary

The Groundhog project ("Groundhog") is an early-stage exploration property located in the Bristol Bay region of southwestern Alaska, 300 km (186 mi) west-southwest of Anchorage, 18 miles north-northwest of the village of Iliamna, within the Lake and Peninsula Borough (Figure 1). The Groundhog property consists of 343 claims located on Alaska State land within the Iliamna recording district held by Chuchuna Minerals Company. The aggregate area covered by all claims is 22,209 hectares (54,880 acres) (Figures 2 and 3). Groundhog is situated in close proximity to the Pebble Cu-Au-Mo porphyry deposit. Quaterra Resources "Quaterra" reached an agreement with Chuchuna in April 2017 whereby it has to provide $5 million over five years in exploration spending, later amended to six years, in order to earn a 90% interest in Groundhog. Quaterra is also required to pay a lump sum of $3 million at the end of the sixth year. Quaterra has no obligation to exercise its option and can terminate the agreement at its discretion annually.

Evaluation of the Groundhog property has primarily been via geophysical means with ground-based CSAMT, VIP and dipole-dipole IP surveys together with a property-wide airborne magnetic and ZTEM surveys. In 2017, 1241 m of core drilling from four widely spaced sites tested IP anomalies. Two of the drill holes (CHU-17-001 and 004) were entirely in Tertiary-aged volcanic and intrusive rocks, the remaining two drill holes (CHU-17-002 and CHU-17-003/3A) were in metasediments and intrusive rocks broadly correlative with geologic units present at the Pebble deposit. While none of the mineralization was economic, the highest Cu values were measured in CHU-17-003/3A. Both drillholes CHU-17-001 and CHU-17-003/3A were designed to drill test IP anomalies but failed to reach the target depths and neither drillhole reached the strongest part of the IP anomalies.

Surface geochemical surveying methods to date have been shown to be of lesser value than the geophysics largely due to a combination of glacial and Tertiary-cover over prospective geologic units. 

Sisyphus Consulting concludes that Quaterra's Groundhog project represents a potentially promising early-stage exploration project in south-west Alaska. Its close proximity to the Pebble Cu-Au-Mo porphyry deposit and presence on the project of geologically correlative units means that Groundhog has excellent potential to host similar mineralization.

Recommendations for continuing exploration efforts at the Groundhog project should be focused on refining targets defined by existing geophysical surveys. Geophysics has proven to be an effective tool in identifying structures that host mineralization. The ZTEM survey completed in September 2019 should be the focus of additional data processing (3D inversion modelling) and integration with the existing ground-based IP surveys in order to assist in prioritizing potential drill targets. It is possible that some additional ground-based geophysical surveys (VIP and/or dipole-dipole IP lines) will be required in the final drill target selection, but ultimately success or failure at Groundhog will be determined by drilling intercepting porphyry Cu mineralization and that should be the priority of future exploration expenditures.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Community engagement and baseline environmental studies should be undertaken and maintained throughout the exploration stages.

Sisyphus Consulting has reviewed a Phase 1 exploration program totaling $35,000 as a budget that is adequate and appropriate for the proposed work. Specifics as to the subsequent Phase 2 budget are unable to be detailed until the Phase 1 portion is completed, however budgeting should be capped at the amount of funds required for Quaterra to complete its exploration requirements according to their agreement with Chuchuna Minerals Company.

This technical report complies with disclosure and reporting requirements set forth in National Instrument 43-101 Standards of Disclosure for Mineral Projects, Companion Policy 43-101CP, and Form 43-101F.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Table of Contents

1 Summary 1
   
Table of Contents 3
   
Figures 5
   
Tables 5
   
2 Introduction 7
2.1 Terms of Reference 7
2.2 Purpose of Report 8
2.3 Sources of Information 8
2.4 Field Examination 8
2.5 Units and Abbreviations 8
   
3 Reliance on Other Experts 10
   
4 Property Description and Location 11
4.1 Area and Location 11
4.2 Claims 11
4.3 Environmental Liabilities 29
4.4 Permits 29
   
5 Accessibility, Climate, Local Resources, Infrastructure and Physiography 29
5.1 Access 29
5.2 Climate 30
5.3 Infrastructure 30
5.4 Local Resources 30
5.5 Physiography 32
   
6 History 33
   
7 Geological Setting and Mineralization 35
7.1 Regional Geology 35
7.2 Local and property geology 37
7.2.1 Jura-Cretaceous metasediments 37
7.2.2 Jura-Cretaceous intrusive rocks 37
7.2.3 Tertiary Volcanics 38
7.2.4 Quaternary Geology 39
7.2.5 Structural Geology 39
   
8 Deposit Type 41
   
9 Exploration 42
9.1 Geophysical surveys 42
9.1.1 2006 to 2007 CSAMT and IP 42
9.1.2 2010 to 2011 geophysical surveys 43
9.1.3 Discussion of 2011 and 2017 IP results 46
9.1.4 2019 ZTEM and magnetics 49
9.2 Surface geochemical sampling and mapping 51
9.2.1 2006 to 2008 51

 



9.2.2 2010 to 2011 51
9.2.3 2017 to 2019 51
9.3 Geochronology at Groundhog 56
9.3.1 Alpha anomaly area 56
9.3.2 Beta anomaly area 56
9.3.3 Groundhog Mountain area 56
   
10 Drilling 57
   
11 Sample Preparation, Analyses and Security 63
11.1 Sample Preparation 63
11.1.1 Conventional surface rock, stream silt and soil samples 63
11.1.2 Vegetation sampling 63
11.1.3 Selective soil leach 2019 63
11.1.4 Till heavy mineral sampling 2019 63
11.1.5 Drill core samples 2017 64
11.2 QA/QC procedures 64
11.3 Sample Security 65
11.4 Opinion on the adequacy of sample preparation, security, and analytical procedures 65
11.4.1 Quality Assurance 65
11.4.2 Quality control 66
11.4.3 Summary statement on QA/QC 66
   
12 Data Verification 67
12.1 Author's visit check sample verification 67
12.2 Drill database verification 67
   
13 Mineral Processing and Metallurgical Testing 67
   
14 Mineral Resource 67
   
15 Adjacent Properties 68
   
16 Other Relevant Data and Information 69
16.1 Environmental Studies, Permitting and Social or Community Impact 69
   
17 Interpretation and Conclusions 70
17.1 Interpretations 70
17.2 Conclusions 71
   
18 Recommendations 73
18.1 Phase 1: target refinement via addition data modelling 73
18.2 Phase 2: target selection for drill testing or ground-based IP 73
18.2.1 NW Sector - Alpha Anomaly and ZTEM targets 9, 17, 13, 8 and 18. 74
18.2.2 Existing IP anomalies on Lines 5 and 6 74
18.2.3 SE Sector - extension of ZG fault zone 74
18.2.4 Beta Magnetic Anomaly 75
18.3 Geochemistry 75
18.4 Project supervision and data management 75
18.5 Costs 76
   
19 References 77


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020
   
Date, Signature and Certificate of Qualifications Pages 80

Figures

Figure 1: Groundhog Project Location. 7
   
Figure 2: Groundhog Property Location, Access, and Infrastructure. 11
   
Figure 3: Claim map of the Groundhog property. 12
   
Figure 4: Groundhog property topography. 31
   
Figure 5: Location of Groundhog within regional geology of SW Alaska (modified from Gaunt et al., 2018) 36
   
Figure 6: Property geology (Leberge, 2010) 40
   
Figure 7: 2010 aeromagnetic survey Groundhog project 44
   
Figure 8: IP line locations for ground IP surveys completed in 2007, 2011 and 2017 46
   
Figure 9: IP surveys with anomalous chargeability areas indicated 47
   
Figure 10: VIP interpretation 48
   
Figure 11: ZTEM targets 50
   
Figure 12: Rock chip samples at Groundhog 2006 - 2019 52
   
Figure 13: Soil samples at Groundhog 2006 - 2019 53
   
Figure 14: Stream silt samples at Groundhog 2006 - 2019 54
   
Figure 15: Geologic observations at Groundhog 2006-2019 55
   
Figure 16: DDH CHU-17-001 on IP Line 6 section 58
   
Figure 17: DDH CHU-17-003/3A on IP Line 5 section 60
   
Figure 18: DDH CHU-17-004 on IP Line 3 section 62
   
Figure 19: Northern Dynasty's Pebble resource estimate in December 2017 (Gaunt et al., 2018). 68

 


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Tables

Table 1: List of Abbreviations. 8
   
Table 2: Active Claims on the Groundhog Property. 14
   
Table 3: Drillhole collars 57


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

2 Introduction

The Groundhog project is an early-stage exploration program located in south-west Alaska (Figure 1). At present the Groundhog property consists of 343 claims, an area of 22,209 hectares (54,880 acres), located adjacent to the Pebble project.

Figure 1: Groundhog Project Location.

2.1 Terms of Reference

Quaterra Resources Inc. ("Quaterra") requested Sisyphus Consulting to perform a property visit and to prepare an independent technical report for the Groundhog Project (the "Property"). Quaterra is based in Vancouver, British Columbia. The author of this document is Nicholas Van Wyck, Ph.D. CPG, of Sisyphus Consulting, who is an independent consultant, and has agreed to compile the information pertaining to the Property. The author is an independent consultant with has more than 27 years of experience in related mineral exploration and has sufficient experience relevant to the style of mineralization and type of deposit under consideration, and to the activities which are being recommended. Dr. Van Wyck is therefore an Independent and Qualified Person as defined in National Instrument 43-101.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

2.2 Purpose of Report

The purpose of this report is to compile past exploration activities on the property and to provide recommendations for further exploration.  This report conforms to the guidelines set out by the National Instrument 43-101 for the disclosure of technical information regarding mineral projects owned by publicly traded Canadian companies.

2.3 Sources of Information

The material and data provided in this report were provided to the author by AES and through interviews with the principals at AES. Information consists of data generated from ongoing exploration by AES and historical data maintained by AES from previous owners. All the data files that were reviewed for the report were provided by AES in digital format. Also included in this report are personal observations made by Dr. Van Wyck in the course of field visits and on general geologic information available to the public through peer review journals, publications by the U.S. Geological Survey, and agencies of the State of Alaska. Public data and press releases on this and adjacent properties have been accessed via SEDAR.

A complete list of the reports and source documents used in the preparation of this report are cited in Section 19 References.

2.4 Field Examination

Dr. Van Wyck visited the project from September 11 to 12th, 2019.

2.5 Units and Abbreviations

All technical terms of reference regarding the terms resources, reserves or mineralization used in this report conform to the standards of practice published by the Canadian Institute of Mining Metallurgy and Petroleum. All geographic locations in this report are relative to North American Datum 1983. Geological and structural measurements, and directional bearings, are expressed relative to true north unless otherwise stated. Non-geodetic coordinates are expressed in Universal Transverse Mercator Zone 5N metric coordinates.  All geological terms used are in standard use within the geological consulting profession in Canada and the U.S.A.  This report uses metric units whenever possible and falls back to imperial measure when it is necessary to preserve historical context. Chemical elements and compounds are abbreviated using standard International Union of Pure and Applied Chemistry abbreviations. All references to dollars are in U.S. Dollars unless otherwise indicated. Other abbreviations are listed in Table 1.

Table 1: List of Abbreviations.

Abbreviation

Definition

2D

2 dimensional (data is modelled along a section)

3D

3 dimensional (data is modelled within a volume)

AERI

Alaska Earth Resources Inc

AES

Alaska Earth Sciences

amsl

Above mean sea level

ANCSA

Alaska Native Claims Settlement Act



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

APMA

Application for Permit to Mine in Alaska

oC

Degrees Celsius

CHU

Chuchuna Minerals Company

CSAMT

Controlled-source Audio-frequency Magnetotellurics

DDH

Diamond Drill Hole

g

Grams

g/t

Grams per Tonne - synonymous with ppm

ft

feet

Hz

hertz

ICP - AES

Inductively Coupled Plasma - Atomic Emission Spectra

IP

Induced polarization

KEC

Kennecott Exploration Company

km

kilometers

m

meters

Ma

Million years

MTRSC

Meridian-Township-Range-Section-Quarter Section; the grid on which Alaska bases its mining claims

mrad, mradian

milliradian

MT

Magneto-telluric

NI 43-101

National Instrument 43-101

NQ

NQ drill core = 47.6 mm inside diameter

ppb

Parts per Billion

ppm

Parts per Million

QA/QC

Quality Assurance/Quality Control

QSP

Quartz-sericite-pyrite

VIP

Vector IP (also known as RIP or reconnaissance IP)

UTM

Universal Transverse Mercator Geographic Coordinate System (type of map projection)

XYZ

Cartesian Coordinates; "Easting", "Northing", and "Elevation"

ZTEM

Z-tipper axis electromagnetic survey (http://bit.ly/1WPDmcz)



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

3 Reliance on Other Experts

This report has been prepared by the author for Quaterra Resources. The information, conclusions, opinions, and estimates contained herein are based on:

• Information available to the author at the time of preparation of this report,

• Assumptions, conditions, and qualifications as set forth in this report, and

• Data, reports, and other information supplied by AES and other third-party sources.

For the purpose of this report, the author has relied on ownership information provided by AES.

The author has not researched Property title or mineral rights for the Groundhog property and expresses no opinion as to the ownership status at the property. Effort was made to review the information provided for obvious errors and omissions; however, the author is not responsible for any errors or omissions relating the legal status of claims described within this report.

Except for the purposes legislated under provincial securities laws, any use of this report by any third party are at that party's sole risk.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

4 Property Description and Location

4.1 Area and Location

The Groundhog property is located in the Bristol Bay region of southwestern Alaska, 300 km (186 mi) west-southwest of Anchorage, 18 miles north-northwest of the village of Iliamna, within the Lake and Peninsula Borough.

Figure 2: Groundhog Property Location, Access, and Infrastructure.

The property is centered, approximately, at latitude 60°04′ N and longitude 155°08′ W, and is located on the United States Geological Survey (USGS) topographic maps Iliamna D6 and Lake Clark A6, in Townships 1 North and South, Township 2 South, Ranges 33-34 West, Seward Meridian.

4.2 Claims

Chuchuna Minerals Company holds 100% interest in a contiguous block of 343 mineral claims covering approximately 84 square miles or 54,880 acres or 22,209 hectares.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 3: Claim map of the Groundhog property.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

State mineral claims in Alaska are kept in good standing by performing annual assessment work or in lieu of assessment work by paying $100 per year per 40 acre (0.06 square mile) mineral claim, and by paying annual escalating state rentals. All of the claims come due annually on August 31. However, credit for excess work can be banked for a maximum of five years afterwards, and can be applied as necessary to continue to hold the claims in good standing. The property claims have a variable amount of work credit available that can be applied in this way. Annual assessment work obligations for the property total US$111,200; existing credit for past work available for use going forward after 2019 total US$1,416,338. The annual rentals for 2019 were US$47,685. At the effective date of this report all rentals and assessment payments were current, all claims had been formally approved by the State of Alaska, and quitclaim transferred to Chuchuna. 

Quaterra reached an agreement with Chuchuna in April 2017 whereby it has to provide $5 million over five years in exploration spending, later amended to six years, in order to earn a 90% interest in Groundhog. The Company is also required to pay a lump sum of $3 million at the end of the sixth year. Quaterra has no obligation to exercise its option and can terminate the agreement at its discretion annually. (All amounts are expressed in U.S. dollars). Chuchuna is the operator of the project and plans, implements and manages exploration field programs as set out in a budget and work plan approved by Quaterra. Chuchuna is an Alaskan company jointly owned by Kijik Corporation, the ANCSA village corporation for the community of Nondalton, and Alaska Earth Sciences, an Anchorage-based mineral exploration company. In February, 2019 a private party purchased Chuchuna shares and the percentage of ownership now consists of AES (48.433%), Kijik (46.533%), and private party (5.033%).

The details of the mineral claims are provided below (ADL refers to the Alaska Department of Lands).


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

  Table 2: Active Claims on the Groundhog Property.

ADL

Claim

T

R

S

Q

Owner

Loc Date

Acres

Status

647270

GDH 3

01N

34W

32

SW

Chuchuna Minerals Company

12/18/2004

160

State

648191

NIKA 14

01N

34W

29

NW

Chuchuna Minerals Company

2/17/2005

160

State

648478

NIKA1

01N

35W

36

NE

Chuchuna Minerals Company

2/17/2005

160

State-Selected

648481

NIKA 4

01N

34W

32

NW

Chuchuna Minerals Company

2/17/2005

160

State

648484

NIKA 7

01N

34W

29

SW

Chuchuna Minerals Company

2/17/2005

160

State

648485

NIKA 8

01N

34W

30

SE

Chuchuna Minerals Company

2/17/2005

160

State

648486

NIKA 9

01N

34W

30

SW

Chuchuna Minerals Company

2/17/2005

160

State

648487

NIKA10

01N

35W

25

SE

Chuchuna Minerals Company

2/17/2005

160

State-Selected

648488

NIKA11

01N

35W

25

NE

Chuchuna Minerals Company

2/17/2005

160

State-Selected

648494

NIKA 17

01N

34W

20

SW

Chuchuna Minerals Company

2/17/2005

160

State

648497

NIKA20

01N

35W

24

SE

Chuchuna Minerals Company

2/17/2005

160

State-Selected

648498

NIKA21

01N

35W

24

NE

Chuchuna Minerals Company

2/17/2005

160

State-Selected

648569

NIKA 92

02N

33W

31

SE

Chuchuna Minerals Company

2/17/2005

160

State

724143

CHU 001

02N

34W

36

NE

Chuchuna Minerals Company

4/15/2017

160

State

724144

CHU 002

02N

33W

31

NW

Chuchuna Minerals Company

4/15/2017

160

State

724145

CHU 003

02N

33W

31

NE

Chuchuna Minerals Company

4/15/2017

160

State

724146

CHU 004

02N

33W

32

NW

Chuchuna Minerals Company

4/15/2017

160

State

724147

CHU 005

02N

33W

32

NE

Chuchuna Minerals Company

4/15/2017

160

State

724148

CHU 006

02N

33W

32

SE

Chuchuna Minerals Company

4/15/2017

160

State

724149

CHU 007

02N

33W

32

SW

Chuchuna Minerals Company

4/15/2017

160

State

724150

CHU 008

02N

33W

31

SW

Chuchuna Minerals Company

4/15/2017

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

724151

CHU 009

02N

34W

36

SE

Chuchuna Minerals Company

4/15/2017

160

State

724152

CHU 010

01N

34W

01

NE

Chuchuna Minerals Company

4/15/2017

160

State

724153

CHU 011

01N

34W

01

SE

Chuchuna Minerals Company

4/15/2017

160

State

724154

CHU 012

01N

33W

06

SW

Chuchuna Minerals Company

4/15/2017

160

State

724155

CHU 013

01N

33W

05

SW

Chuchuna Minerals Company

4/15/2017

160

State

724156

CHU 014

01N

33W

05

SE

Chuchuna Minerals Company

4/15/2017

160

State

724157

CHU 015

01N

33W

08

NE

Chuchuna Minerals Company

4/15/2017

160

State

724158

CHU 016

01N

33W

08

NW

Chuchuna Minerals Company

4/15/2017

160

State

724159

CHU 017

01N

33W

07

NW

Chuchuna Minerals Company

4/15/2017

160

State

724160

CHU 018

01N

33W

07

SW

Chuchuna Minerals Company

4/15/2017

160

State

724161

CHU 019

01N

33W

08

SW

Chuchuna Minerals Company

4/15/2017

160

State

724162

CHU 020

01N

33W

08

SE

Chuchuna Minerals Company

4/15/2017

160

State

724163

CHU 021

01N

33W

17

NW

Chuchuna Minerals Company

4/15/2017

160

State

724164

CHU 022

01N

33W

18

NE

Chuchuna Minerals Company

4/15/2017

160

State

724165

CHU 023

01N

33W

18

NW

Chuchuna Minerals Company

4/15/2017

160

State

724166

CHU 024

01N

34W

13

NE

Chuchuna Minerals Company

4/15/2017

160

State

724167

CHU 025

01N

34W

13

NW

Chuchuna Minerals Company

4/15/2017

160

State

724168

CHU 026

01N

34W

14

NE

Chuchuna Minerals Company

4/15/2017

160

State

724169

CHU 027

01N

34W

14

NW

Chuchuna Minerals Company

4/15/2017

160

State

724170

CHU 028

01N

34W

15

NE

Chuchuna Minerals Company

4/15/2017

160

State

724171

CHU 029

01N

34W

15

NW

Chuchuna Minerals Company

4/15/2017

160

State

724172

CHU 030

01N

34W

16

NE

Chuchuna Minerals Company

4/15/2017

160

State

724173

CHU 031

01N

34W

16

NW

Chuchuna Minerals Company

4/15/2017

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

724174

CHU 032

01N

34W

17

NE

Chuchuna Minerals Company

4/15/2017

160

State

724175

CHU 033

01N

34W

17

SE

Chuchuna Minerals Company

4/15/2017

160

State

724176

CHU 034

01N

34W

20

NE

Chuchuna Minerals Company

4/15/2017

160

State

724177

CHU 035

01N

34W

20

NW

Chuchuna Minerals Company

4/15/2017

160

State

724178

CHU 036

01N

34W

19

NE

Chuchuna Minerals Company

4/15/2017

160

State

724179

CHU 037

01N

34W

19

NW

Chuchuna Minerals Company

4/15/2017

160

State

724180

CHU 038

01N

34W

19

SW

Chuchuna Minerals Company

4/15/2017

160

State

724181

CHU 039

01N

34W

19

SE

Chuchuna Minerals Company

4/15/2017

160

State

724182

CHU 040

01N

34W

20

SE

Chuchuna Minerals Company

4/15/2017

160

State

724183

CHU 041

01N

34W

29

NE

Chuchuna Minerals Company

4/15/2017

160

State

724184

CHU 042

01N

34W

30

NE

Chuchuna Minerals Company

4/15/2017

160

State

724185

CHU 043

01N

34W

30

NW

Chuchuna Minerals Company

4/15/2017

160

State

724186

CHU 044

01N

34W

29

SE

Chuchuna Minerals Company

4/15/2017

160

State

724187

CHU 045

01N

34W

32

NE

Chuchuna Minerals Company

4/15/2017

160

State

724188

CHU 046

01N

34W

31

NE

Chuchuna Minerals Company

4/15/2017

160

State

724189

CHU 047

01N

34W

31

NW

Chuchuna Minerals Company

4/15/2017

160

State

724190

CHU 048

01N

34W

31

SW

Chuchuna Minerals Company

4/15/2017

160

State

724191

CHU 049

01N

34W

31

SE

Chuchuna Minerals Company

4/15/2017

160

State

724192

CHU 050

01N

34W

32

SE

Chuchuna Minerals Company

4/15/2017

160

State

724193

CHU 051

01S

35W

01

NE

Chuchuna Minerals Company

4/15/2017

160

State

724194

CHU 052

01S

35W

01

SE

Chuchuna Minerals Company

4/15/2017

160

State

724195

CHU 053

01S

35W

12

NE

Chuchuna Minerals Company

4/15/2017

160

State

724196

CHU 054

01S

35W

12

SE

Chuchuna Minerals Company

4/15/2017

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

724197

CHU 055

01S

35W

13

NE

Chuchuna Minerals Company

4/15/2017

160

State

724198

CHU 056

01S

35W

13

SE

Chuchuna Minerals Company

4/15/2017

160

State

724199

CHU 057

01S

34W

23

NW

Chuchuna Minerals Company

4/15/2017

160

State

724200

CHU 058

01S

34W

21

NE

Chuchuna Minerals Company

4/15/2017

160

State

724201

CHU 059

01S

34W

21

NW

Chuchuna Minerals Company

4/15/2017

160

State

724202

CHU 060

01S

34W

20

NE

Chuchuna Minerals Company

4/15/2017

160

State

724203

CHU 061

01S

34W

20

NW

Chuchuna Minerals Company

4/15/2017

160

State

724204

CHU 062

01S

34W

19

NE

Chuchuna Minerals Company

4/15/2017

160

State

724205

CHU 063

01S

34W

19

NW

Chuchuna Minerals Company

4/15/2017

160

State

724206

CHU 064

01S

35W

24

NE

Chuchuna Minerals Company

4/15/2017

160

State

724207

CHU 065

01S

35W

24

SE

Chuchuna Minerals Company

4/15/2017

160

State

724208

CHU 066

01S

34W

19

SW

Chuchuna Minerals Company

4/15/2017

160

State

724209

CHU 067

01S

34W

19

SE

Chuchuna Minerals Company

4/15/2017

160

State

724210

CHU 068

01S

34W

20

SW

Chuchuna Minerals Company

4/15/2017

160

State

724211

CHU 069

01S

34W

20

SE

Chuchuna Minerals Company

4/15/2017

160

State

724212

CHU 070

01S

34W

21

SW

Chuchuna Minerals Company

4/15/2017

160

State

724213

CHU 071

01S

34W

21

SE

Chuchuna Minerals Company

4/15/2017

160

State

724214

CHU 072

01S

34W

23

SW

Chuchuna Minerals Company

4/15/2017

160

State

724215

CHU 073

01S

34W

26

NE

Chuchuna Minerals Company

4/15/2017

160

State

724216

CHU 074

01S

34W

26

NW

Chuchuna Minerals Company

4/15/2017

160

State

724217

CHU 075

01S

34W

28

NE

Chuchuna Minerals Company

4/15/2017

160

State

724218

CHU 076

01S

34W

28

NW

Chuchuna Minerals Company

4/15/2017

160

State

724219

CHU 077

01S

34W

29

NE

Chuchuna Minerals Company

4/15/2017

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

724220

CHU 078

01S

34W

29

NW

Chuchuna Minerals Company

4/15/2017

160

State

724221

CHU 079

01S

34W

30

NE

Chuchuna Minerals Company

4/15/2017

160

State

724222

CHU 080

01S

34W

30

NW

Chuchuna Minerals Company

4/15/2017

160

State

724223

CHU 081

01S

35W

25

NE

Chuchuna Minerals Company

4/15/2017

160

State

724224

CHU 082

01S

35W

25

SE

Chuchuna Minerals Company

4/15/2017

160

State

724225

CHU 083

01S

34W

30

SW

Chuchuna Minerals Company

4/15/2017

160

State

724226

CHU 084

01S

34W

30

SE

Chuchuna Minerals Company

4/15/2017

160

State

724227

CHU 085

01S

34W

29

SW

Chuchuna Minerals Company

4/15/2017

160

State

724228

CHU 086

01S

34W

29

SE

Chuchuna Minerals Company

4/15/2017

160

State

724229

CHU 087

01S

34W

28

SW

Chuchuna Minerals Company

4/15/2017

160

State

724230

CHU 088

01S

34W

28

SE

Chuchuna Minerals Company

4/15/2017

160

State

724231

CHU 089

01S

34W

26

SW

Chuchuna Minerals Company

4/15/2017

160

State

724232

CHU 090

01S

34W

26

SE

Chuchuna Minerals Company

4/15/2017

160

State

724233

CHU 091

01S

34W

35

NE

Chuchuna Minerals Company

4/15/2017

160

State

724234

CHU 092

01S

34W

35

NW

Chuchuna Minerals Company

4/15/2017

160

State

724235

CHU 093

01S

34W

33

NE

Chuchuna Minerals Company

4/15/2017

160

State

724236

CHU 094

01S

34W

33

NW

Chuchuna Minerals Company

4/15/2017

160

State

724237

CHU 095

01S

34W

32

NE

Chuchuna Minerals Company

4/15/2017

160

State

724238

CHU 096

01S

34W

32

NW

Chuchuna Minerals Company

4/15/2017

160

State

724239

CHU 097

01S

34W

31

NE

Chuchuna Minerals Company

4/15/2017

160

State

724240

CHU 098

01S

34W

31

NW

Chuchuna Minerals Company

4/15/2017

160

State

724241

CHU 099

01S

35W

36

NE

Chuchuna Minerals Company

4/15/2017

160

State

724242

CHU 100

01S

35W

36

SW

Chuchuna Minerals Company

4/15/2017

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

724243

CHU 101

01S

35W

36

SE

Chuchuna Minerals Company

4/15/2017

160

State

724244

CHU 102

01S

34W

31

SW

Chuchuna Minerals Company

4/15/2017

160

State

724245

CHU 103

01S

34W

31

SE

Chuchuna Minerals Company

4/15/2017

160

State

724246

CHU 104

01S

34W

32

SW

Chuchuna Minerals Company

4/15/2017

160

State

724247

CHU 105

01S

34W

32

SE

Chuchuna Minerals Company

4/15/2017

160

State

724248

CHU 106

01S

34W

33

SW

Chuchuna Minerals Company

4/15/2017

160

State

724249

CHU 107

01S

34W

33

SE

Chuchuna Minerals Company

4/15/2017

160

State

724250

CHU 108

01S

34W

35

SW

Chuchuna Minerals Company

4/15/2017

160

State

724251

CHU 109

01S

34W

35

SE

Chuchuna Minerals Company

4/15/2017

160

State

724252

CHU 110

02S

34W

02

NE

Chuchuna Minerals Company

4/15/2017

160

State

724253

CHU 111

02S

34W

02

NW

Chuchuna Minerals Company

4/15/2017

160

State

724254

CHU 112

02S

34W

04

NE

Chuchuna Minerals Company

4/15/2017

160

State

724255

CHU 113

02S

34W

04

NW

Chuchuna Minerals Company

4/15/2017

160

State

724256

CHU 114

02S

34W

05

NE

Chuchuna Minerals Company

4/15/2017

160

State

724257

CHU 115

02S

34W

05

NW

Chuchuna Minerals Company

4/15/2017

160

State

724258

CHU 116

02S

34W

06

NE

Chuchuna Minerals Company

4/15/2017

160

State

724259

CHU 117

02S

34W

06

NW

Chuchuna Minerals Company

4/15/2017

160

State

724260

CHU 118

02S

35W

01

NE

Chuchuna Minerals Company

4/15/2017

160

State

724261

CHU 119

02S

35W

01

NW

Chuchuna Minerals Company

4/15/2017

160

State

724262

CHU 120

02S

35W

02

NE

Chuchuna Minerals Company

4/15/2017

160

State

724263

CHU 121

02S

35W

02

SE

Chuchuna Minerals Company

4/15/2017

160

State

724264

CHU 122

02S

35W

01

SW

Chuchuna Minerals Company

4/15/2017

160

State

724265

CHU 123

02S

35W

01

SE

Chuchuna Minerals Company

4/15/2017

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

724266

CHU 124

02S

34W

06

SW

Chuchuna Minerals Company

4/15/2017

160

State

724267

CHU 125

02S

34W

06

SE

Chuchuna Minerals Company

4/15/2017

160

State

724268

CHU 126

02S

34W

05

SW

Chuchuna Minerals Company

4/15/2017

160

State

724269

CHU 127

02S

34W

05

SE

Chuchuna Minerals Company

4/15/2017

160

State

724270

CHU 128

02S

34W

04

SW

Chuchuna Minerals Company

4/15/2017

160

State

724271

CHU 129

02S

34W

04

SE

Chuchuna Minerals Company

4/15/2017

160

State

724272

CHU 130

02S

34W

03

SW

Chuchuna Minerals Company

4/15/2017

160

State

724273

CHU 131

02S

34W

02

SE

Chuchuna Minerals Company

4/15/2017

160

State

724274

CHU 132

02S

34W

01

SW

Chuchuna Minerals Company

4/15/2017

160

State

724275

CHU 133

02S

34W

01

SE

Chuchuna Minerals Company

4/15/2017

160

State

724276

CHU 134

02S

33W

06

SW

Chuchuna Minerals Company

4/15/2017

160

State

724277

CHU 135

02S

33W

07

NE

Chuchuna Minerals Company

4/15/2017

160

State

724278

CHU 136

02S

33W

07

NW

Chuchuna Minerals Company

4/15/2017

160

State

724279

CHU 137

02S

34W

12

NE

Chuchuna Minerals Company

4/15/2017

160

State

724280

CHU 138

02S

34W

12

NW

Chuchuna Minerals Company

4/15/2017

160

State

724281

CHU 139

02S

34W

11

NE

Chuchuna Minerals Company

4/15/2017

160

State

724282

CHU 140

02S

34W

10

NW

Chuchuna Minerals Company

4/15/2017

160

State

724283

CHU 141

02S

34W

09

NE

Chuchuna Minerals Company

4/15/2017

160

State

724284

CHU 142

02S

34W

09

NW

Chuchuna Minerals Company

4/15/2017

160

State

724285

CHU 143

02S

34W

08

NE

Chuchuna Minerals Company

4/15/2017

160

State

724286

CHU 144

02S

34W

08

NW

Chuchuna Minerals Company

4/15/2017

160

State

724287

CHU 145

02S

34W

07

NE

Chuchuna Minerals Company

4/15/2017

160

State

724288

CHU 146

02S

34W

07

NW

Chuchuna Minerals Company

4/15/2017

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

724289

CHU 147

02S

35W

12

NE

Chuchuna Minerals Company

4/15/2017

160

State

724290

CHU 148

02S

35W

12

NW

Chuchuna Minerals Company

4/15/2017

160

State

724291

CHU 149

02S

34W

07

SW

Chuchuna Minerals Company

4/15/2017

160

State

724292

CHU 150

02S

34W

07

SE

Chuchuna Minerals Company

4/15/2017

160

State

724293

CHU 151

02S

34W

08

SW

Chuchuna Minerals Company

4/15/2017

160

State

724294

CHU 152

02S

34W

08

SE

Chuchuna Minerals Company

4/15/2017

160

State

724295

CHU 153

02S

34W

09

SW

Chuchuna Minerals Company

4/15/2017

160

State

724296

CHU 154

02S

34W

09

SE

Chuchuna Minerals Company

4/15/2017

160

State

724297

CHU 155

02S

34W

10

SW

Chuchuna Minerals Company

4/15/2017

160

State

724298

CHU 156

02S

34W

12

SW

Chuchuna Minerals Company

4/15/2017

160

State

724299

CHU 157

02S

34W

12

SE

Chuchuna Minerals Company

4/15/2017

160

State

724300

CHU 158

02S

33W

07

SW

Chuchuna Minerals Company

4/15/2017

160

State

724301

CHU 159

02S

33W

07

SE

Chuchuna Minerals Company

4/15/2017

160

State

724302

CHU 160

02S

33W

18

NE

Chuchuna Minerals Company

4/15/2017

160

State

724303

CHU 161

02S

33W

18

NW

Chuchuna Minerals Company

4/15/2017

160

State

724304

CHU 162

02S

34W

17

NE

Chuchuna Minerals Company

4/15/2017

160

State

724305

CHU 163

02S

34W

17

NW

Chuchuna Minerals Company

4/15/2017

160

State

724306

CHU 164

02S

34W

18

NE

Chuchuna Minerals Company

4/15/2017

160

State

724307

CHU 165

02S

34W

17

SW

Chuchuna Minerals Company

4/15/2017

160

State

724308

CHU 166

02S

34W

17

SE

Chuchuna Minerals Company

4/15/2017

160

State

724309

CHU 167

02S

34W

13

SE

Chuchuna Minerals Company

4/15/2017

160

State

724310

CHU 168

02S

33W

18

SW

Chuchuna Minerals Company

4/15/2017

160

State

724311

CHU 169

02S

34W

24

NE

Chuchuna Minerals Company

4/16/2017

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

724312

CHU 170

02S

34W

24

NW

Chuchuna Minerals Company

4/15/2017

160

State

724313

CHU 171

02S

34W

21

NE

Chuchuna Minerals Company

4/15/2017

160

State

724314

CHU 172

02S

34W

21

NW

Chuchuna Minerals Company

4/15/2017

160

State

724315

CHU 173

02S

34W

20

NE

Chuchuna Minerals Company

4/15/2017

160

State

724316

CHU 174

02S

34W

20

NW

Chuchuna Minerals Company

4/15/2017

160

State

724317

CHU 175

02S

34W

20

SW

Chuchuna Minerals Company

4/16/2017

160

State

724318

CHU 176

02S

34W

20

SE

Chuchuna Minerals Company

4/16/2017

160

State

724319

CHU 177

02S

34W

21

SW

Chuchuna Minerals Company

4/16/2017

160

State

724320

CHU 178

02S

34W

21

SE

Chuchuna Minerals Company

4/16/2017

160

State

724321

CHU 179

02S

34W

23

SE

Chuchuna Minerals Company

4/16/2017

160

State

724322

CHU 180

02S

34W

24

SW

Chuchuna Minerals Company

4/16/2017

160

State

724323

CHU 181

02S

34W

26

NE

Chuchuna Minerals Company

4/16/2017

160

State

724324

CHU 182

02S

34W

26

NW

Chuchuna Minerals Company

4/16/2017

160

State

724325

CHU 183

02S

34W

28

NE

Chuchuna Minerals Company

4/16/2017

160

State

724326

CHU 184

02S

34W

28

NW

Chuchuna Minerals Company

4/16/2017

160

State

724327

CHU 185

02S

34W

29

NE

Chuchuna Minerals Company

4/16/2017

160

State

724328

CHU 186

02S

34W

29

NW

Chuchuna Minerals Company

4/16/2017

160

State

724329

CHU 187

02S

34W

30

SE

Chuchuna Minerals Company

4/16/2017

160

State

724330

CHU 188

02S

34W

29

SW

Chuchuna Minerals Company

4/16/2017

160

State

724331

CHU 189

02S

34W

29

SE

Chuchuna Minerals Company

4/16/2017

160

State

724332

CHU 190

02S

34W

28

SW

Chuchuna Minerals Company

4/16/2017

160

State

724333

CHU 191

02S

34W

28

SE

Chuchuna Minerals Company

4/16/2017

160

State

724334

CHU 192

02S

34W

27

SW

Chuchuna Minerals Company

4/16/2017

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

724335

CHU 193

02S

34W

27

SE

Chuchuna Minerals Company

4/16/2017

160

State

724336

CHU 194

02S

34W

26

SW

Chuchuna Minerals Company

4/16/2017

160

State

724337

CHU 195

02S

34W

34

NW

Chuchuna Minerals Company

4/16/2017

160

State

724338

CHU 196

02S

34W

33

NE

Chuchuna Minerals Company

4/16/2017

160

State

724339

CHU 197

02S

34W

33

NW

Chuchuna Minerals Company

4/16/2017

160

State

724340

CHU 198

02S

34W

32

NE

Chuchuna Minerals Company

4/16/2017

160

State

724341

CHU 199

02S

34W

32

NW

Chuchuna Minerals Company

4/16/2017

160

State

724342

CHU 200

02S

34W

31

NE

Chuchuna Minerals Company

4/16/2017

160

State

724343

CHU 201

02S

34W

31

NW

Chuchuna Minerals Company

4/16/2017

160

State

724344

CHU 202

02S

35W

36

SE

Chuchuna Minerals Company

4/16/2017

160

State

724345

CHU 203

02S

34W

31

SW

Chuchuna Minerals Company

4/16/2017

160

State

724346

CHU 204

02S

34W

31

SE

Chuchuna Minerals Company

4/16/2017

160

State

724347

CHU 205

02S

34W

32

SW

Chuchuna Minerals Company

4/16/2017

160

State

724348

CHU 206

02S

34W

32

SE

Chuchuna Minerals Company

4/16/2017

160

State

724349

CHU 207

02S

34W

33

SW

Chuchuna Minerals Company

4/16/2017

160

State

724350

CHU 208

02S

34W

33

SE

Chuchuna Minerals Company

4/16/2017

160

State

724351

CHU 209

03S

34W

04

NW

Chuchuna Minerals Company

4/16/2017

160

State

724352

CHU 210

03S

34W

05

NE

Chuchuna Minerals Company

4/16/2017

160

State

724353

CHU 211

03S

34W

05

NW

Chuchuna Minerals Company

4/16/2017

160

State

724354

CHU 212

03S

34W

06

NE

Chuchuna Minerals Company

4/16/2017

160

State

724355

CHU 213

03S

34W

06

NW

Chuchuna Minerals Company

4/16/2017

160

State

724356

CHU 214

03S

35W

01

NE

Chuchuna Minerals Company

4/16/2017

160

State

724357

CHU 215

03S

35W

01

NW

Chuchuna Minerals Company

4/16/2017

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

724358

CHU 216

03S

34W

06

SE

Chuchuna Minerals Company

4/16/2017

160

State

724359

CHU 217

03S

34W

05

SW

Chuchuna Minerals Company

4/16/2017

160

State

724360

CHU 218

03S

34W

05

SE

Chuchuna Minerals Company

4/16/2017

160

State

728084

CHU 239

01S

34W

22

NW

Chuchuna Minerals Company

5/8/2018

160

State

728085

CHU 240

01S

34W

22

NE

Chuchuna Minerals Company

5/8/2018

160

State

728086

CHU 241

01S

34W

22

SW

Chuchuna Minerals Company

5/8/2018

160

State

728087

CHU 242

01S

34W

22

SE

Chuchuna Minerals Company

5/8/2018

160

State

728088

CHU 243

01S

34W

27

NW

Chuchuna Minerals Company

5/8/2018

160

State

728089

CHU 244

01S

34W

27

NE

Chuchuna Minerals Company

5/8/2018

160

State

728090

CHU 245

01S

34W

27

SW

Chuchuna Minerals Company

5/8/2018

160

State

728091

CHU 246

01S

34W

27

SE

Chuchuna Minerals Company

5/8/2018

160

State

728092

CHU 247

01S

34W

34

NW

Chuchuna Minerals Company

5/8/2018

160

State

728093

CHU 248

01S

34W

34

NE

Chuchuna Minerals Company

5/8/2018

160

State

728094

CHU 249

01S

34W

34

SW

Chuchuna Minerals Company

5/8/2018

160

State

728095

CHU 250

01S

34W

34

SE

Chuchuna Minerals Company

5/8/2018

160

State

728096

CHU 251

02S

34W

03

NW

Chuchuna Minerals Company

5/8/2018

160

State

728097

CHU 252

02S

34W

03

NE

Chuchuna Minerals Company

5/8/2018

160

State

728098

CHU 253

02S

34W

03

SE

Chuchuna Minerals Company

5/8/2018

160

State

728099

CHU 254

02S

34W

02

SW

Chuchuna Minerals Company

5/8/2018

160

State

728100

CHU 255

02S

34W

10

NE

Chuchuna Minerals Company

5/8/2018

160

State

728101

CHU 256

02S

34W

11

NW

Chuchuna Minerals Company

5/8/2018

160

State

728102

CHU 257

02S

34W

10

SE

Chuchuna Minerals Company

5/8/2018

160

State

728103

CHU 258

02S

34W

11

SW

Chuchuna Minerals Company

5/8/2018

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

728104

CHU 259

02S

34W

11

SE

Chuchuna Minerals Company

5/8/2018

160

State

728105

CHU 260

02S

34W

16

NW

Chuchuna Minerals Company

5/8/2018

160

State

728106

CHU 261

02S

34W

16

NE

Chuchuna Minerals Company

5/8/2018

160

State

728107

CHU 262

02S

34W

15

NW

Chuchuna Minerals Company

5/8/2018

160

State

728108

CHU 263

02S

34W

15

NE

Chuchuna Minerals Company

5/8/2018

160

State

728109

CHU 264

02S

34W

14

NW

Chuchuna Minerals Company

5/8/2018

160

State

728110

CHU 265

02S

34W

14

NE

Chuchuna Minerals Company

5/8/2018

160

State

728111

CHU 266

02S

34W

13

NW

Chuchuna Minerals Company

5/8/2018

160

State

728112

CHU 267

02S

34W

13

NE

Chuchuna Minerals Company

5/8/2018

160

State

728113

CHU 268

02S

34W

16

SW

Chuchuna Minerals Company

5/8/2018

160

State

728114

CHU 269

02S

34W

16

SE

Chuchuna Minerals Company

5/8/2018

160

State

728115

CHU 270

02S

34W

15

SW

Chuchuna Minerals Company

5/8/2018

160

State

728116

CHU 271

02S

34W

15

SE

Chuchuna Minerals Company

5/8/2018

160

State

728117

CHU 272

02S

34W

14

SW

Chuchuna Minerals Company

5/8/2018

160

State

728118

CHU 273

02S

34W

14

SE

Chuchuna Minerals Company

5/8/2018

160

State

728119

CHU 274

02S

34W

13

SW

Chuchuna Minerals Company

5/8/2018

160

State

728120

CHU 275

02S

34W

22

NW

Chuchuna Minerals Company

5/8/2018

160

State

728121

CHU 276

02S

34W

22

NE

Chuchuna Minerals Company

5/8/2018

160

State

728122

CHU 277

02S

34W

23

NW

Chuchuna Minerals Company

5/8/2018

160

State

728123

CHU 278

02S

34W

23

NE

Chuchuna Minerals Company

5/8/2018

160

State

728124

CHU 279

02S

34W

22

SW

Chuchuna Minerals Company

5/8/2018

160

State

728125

CHU 280

02S

34W

22

SE

Chuchuna Minerals Company

5/8/2018

160

State

728126

CHU 281

02S

34W

23

SW

Chuchuna Minerals Company

5/8/2018

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

728127

CHU 282

02S

34W

27

NW

Chuchuna Minerals Company

5/8/2018

160

State

728128

CHU 283

02S

34W

27

NE

Chuchuna Minerals Company

5/8/2018

160

State

728130

CHU 220

01N

33W

06

NW

Chuchuna Minerals Company

5/8/2018

160

State

728131

CHU 221

01N

33W

06

NE

Chuchuna Minerals Company

5/8/2018

160

State

728132

CHU 222

01N

33W

05

NW

Chuchuna Minerals Company

5/8/2018

160

State

728133

CHU 223

01N

33W

05

NE

Chuchuna Minerals Company

5/8/2018

160

State

728134

CHU 224

01N

33W

06

SE

Chuchuna Minerals Company

5/8/2018

160

State

728135

CHU 225

01N

33W

07

NE

Chuchuna Minerals Company

5/8/2018

160

State

728136

CHU 226

01N

33W

07

SE

Chuchuna Minerals Company

5/8/2018

160

State

730658

CHU 284

01S

34W

23

NE

Chuchuna Minerals Company

9/13/2019

160

State

730659

CHU 285

01S

34W

24

NW

Chuchuna Minerals Company

9/13/2019

160

State

730660

CHU 286

01S

34W

24

NE

Chuchuna Minerals Company

9/13/2019

160

State

730661

CHU 287

01S

33W

19

NW

Chuchuna Minerals Company

9/13/2019

160

State

730662

CHU 288

01S

33W

19

NE

Chuchuna Minerals Company

9/13/2019

160

State

730663

CHU 289

01S

34W

23

SE

Chuchuna Minerals Company

9/13/2019

160

State

730664

CHU 290

01S

34W

24

SW

Chuchuna Minerals Company

9/13/2019

160

State

730665

CHU 291

01S

34W

24

SE

Chuchuna Minerals Company

9/13/2019

160

State

730666

CHU 292

01S

33W

19

SW

Chuchuna Minerals Company

9/13/2019

160

State

730667

CHU 293

01S

33W

19

SE

Chuchuna Minerals Company

9/13/2019

160

State

730668

CHU 294

01S

34W

25

NW

Chuchuna Minerals Company

9/13/2019

160

State

730669

CHU 295

01S

34W

25

NE

Chuchuna Minerals Company

9/13/2019

160

State

730670

CHU 296

01S

33W

30

NW

Chuchuna Minerals Company

9/13/2019

160

State

730671

CHU 297

01S

33W

30

NE

Chuchuna Minerals Company

9/13/2019

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

730672

CHU 298

01S

34W

25

SW

Chuchuna Minerals Company

9/13/2019

160

State

730673

CHU 299

01S

34W

25

SE

Chuchuna Minerals Company

9/13/2019

160

State

730674

CHU 300

01S

33W

30

SW

Chuchuna Minerals Company

9/13/2019

160

State

730675

CHU 301

01S

33W

30

SE

Chuchuna Minerals Company

9/13/2019

160

State

730676

CHU 302

01S

34W

36

NW

Chuchuna Minerals Company

9/13/2019

160

State

730677

CHU 303

01S

34W

36

NE

Chuchuna Minerals Company

9/13/2019

160

State

730678

CHU 304

01S

33W

31

NW

Chuchuna Minerals Company

9/13/2019

160

State

730679

CHU 305

01S

33W

31

NE

Chuchuna Minerals Company

9/13/2019

160

State

730680

CHU 306

01S

34W

36

SW

Chuchuna Minerals Company

9/13/2019

160

State

730681

CHU 307

01S

34W

36

SE

Chuchuna Minerals Company

9/13/2019

160

State

730682

CHU 308

01S

33W

31

SW

Chuchuna Minerals Company

9/13/2019

160

State

730683

CHU 309

01S

33W

31

SE

Chuchuna Minerals Company

9/13/2019

160

State

730684

CHU 310

02S

34W

1

NW

Chuchuna Minerals Company

9/13/2019

160

State

730685

CHU 311

02S

34W

1

NE

Chuchuna Minerals Company

9/13/2019

160

State

730686

CHU 312

02S

33W

6

NW

Chuchuna Minerals Company

9/13/2019

160

State

730687

CHU 313

02S

35W

12

SW

Chuchuna Minerals Company

9/13/2019

160

State

730688

CHU 314

02S

35W

12

SE

Chuchuna Minerals Company

9/13/2019

160

State

730689

CHU 315

02S

35W

13

NW

Chuchuna Minerals Company

9/13/2019

160

State

730690

CHU 316

02S

35W

13

NE

Chuchuna Minerals Company

9/13/2019

160

State

730691

CHU 317

02S

34W

18

NW

Chuchuna Minerals Company

9/13/2019

160

State

730692

CHU 318

02S

35W

13

SW

Chuchuna Minerals Company

9/13/2019

160

State

730693

CHU 319

02S

35W

13

SE

Chuchuna Minerals Company

9/13/2019

160

State

730694

CHU 320

02S

34W

18

SW

Chuchuna Minerals Company

9/13/2019

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

730695

CHU 321

02S

34W

18

SE

Chuchuna Minerals Company

9/13/2019

160

State

730696

CHU 322

02S

35W

24

NW

Chuchuna Minerals Company

9/13/2019

160

State

730697

CHU 323

02S

35W

24

NE

Chuchuna Minerals Company

9/13/2019

160

State

730698

CHU 324

02S

34W

19

NW

Chuchuna Minerals Company

9/13/2019

160

State

730699

CHU 325

02S

34W

19

NE

Chuchuna Minerals Company

9/13/2019

160

State

730700

CHU 326

02S

35W

24

SW

Chuchuna Minerals Company

9/13/2019

160

State

730701

CHU 327

02S

35W

24

SE

Chuchuna Minerals Company

9/13/2019

160

State

730702

CHU 328

02S

34W

19

SW

Chuchuna Minerals Company

9/13/2019

160

State

730703

CHU 329

02S

34W

19

SE

Chuchuna Minerals Company

9/13/2019

160

State

730704

CHU 330

02S

35W

25

NW

Chuchuna Minerals Company

9/13/2019

160

State

730705

CHU 331

02S

35W

25

NE

Chuchuna Minerals Company

9/13/2019

160

State

730706

CHU 332

02S

34W

30

NW

Chuchuna Minerals Company

9/13/2019

160

State

730707

CHU 333

02S

34W

30

NE

Chuchuna Minerals Company

9/13/2019

160

State

730708

CHU 334

02S

35W

26

SE

Chuchuna Minerals Company

9/13/2019

160

State

730709

CHU 335

02S

35W

25

SW

Chuchuna Minerals Company

9/13/2019

160

State

730710

CHU 336

02S

35W

25

SE

Chuchuna Minerals Company

9/13/2019

160

State

730711

CHU 337

02S

34W

30

SW

Chuchuna Minerals Company

9/13/2019

160

State

730712

CHU 338

02S

35W

35

NW

Chuchuna Minerals Company

9/13/2019

160

State

730713

CHU 339

02S

35W

35

NE

Chuchuna Minerals Company

9/13/2019

160

State

730714

CHU 340

02S

35W

36

NW

Chuchuna Minerals Company

9/13/2019

160

State

730715

CHU 341

02S

35W

36

NE

Chuchuna Minerals Company

9/13/2019

160

State

730716

CHU 342

02S

35W

35

SE

Chuchuna Minerals Company

9/13/2019

160

State

730717

CHU 343

02S

35W

36

SW

Chuchuna Minerals Company

9/13/2019

160

State



Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

The claim boundaries have not been surveyed.

4.3 Environmental Liabilities

There are no known environmental liabilities associated with the property.

4.4 Permits

All necessary permits and authorizations are in place for the Company to continue to conduct ground-based exploration on the property including helicopter-supported drilling.

A multi-year APMA application was submitted in 2017 to explore on the property. APMA authorization (APMA# 173099) was approved by the DNR on July 6, 2017 and has been revised four times. The current APMA (#173099#4) is valid until 12/31/2021 along with an additional Miscellaneous Land Use Permit 3099#4. 

Reclamation bonding for the project is through the Alaska Statewide Bond Pool, for which there is an annual fee of $112.50 per acre of disturbance. The project is not required to post bond as the area of disturbance is currently less than 5 acres and the project has 0.25 acres of recorded disturbance. An annual reclamation statement was last submitted to DNR April, 2019 documenting no new surface disturbance in 2018.

5 Accessibility, Climate, Local Resources, Infrastructure and Physiography

[portions of the text in this section have been excerpted and modified from the same section of the current 43-101 report from the adjacent Pebble project (Gaunt et al., 2018)]

5.1 Access

Access to the property is typically via air travel from the city of Anchorage, which is situated at the north-eastern end of Cook Inlet and is connected to the national road network via Interstate Highway 1 through Canada to the USA. Anchorage is serviced daily by several regularly scheduled flights from major national and international airports. From Anchorage, there are regular flights to Iliamna and/or Nondalton through three currently active Part 135 air taxi services. Charter flights may also be arranged from Anchorage. From Nondalton, access to the Groundhog property can be accomplished by four-wheeler to the southern portion of the claim block or by helicopter to the remainder.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

5.2 Climate

The climate of the Groundhog ranges between continental in winter and more maritime conditions in summer due to variations in local ice cover on Iliamna Lake and, to a lesser extent, the Bering Sea and Cook Inlet. Mean monthly temperatures range from about 55°F in summer to 2°F in winter. There is approximately 50 inches per year of precipitation with a third of that falling as snow. The wettest months are August through October.

The adjacent Pebble Project has demonstrated the climate-conditions do not preclude a 12-month exploration season.

5.3 Infrastructure

The closest public airfield is in the village of Nondalton where the State of Alaska maintains a 2800 foot gravel strip. The Iliamna airport, with two paved 4,920 foot airstrips, suitable for DC-6 and Hercules cargo aircraft, and commercial jet aircraft, is located 16 miles south of the project area (early exploration campaigns at Groundhog were based out of Iliamna). A partly paved, partly gravel road extends from Iliamna to a proposed Newhalen River crossing near Nondalton, but at present it is not possible to drive from Iliamna to Nondalton. The property is currently not connected to any local communities by road.

There is no access road that connects the communities of Nondalton, Newhalen and Iliamna to the coast on Cook Inlet. From the coast, at Williamsport on Iniskin Bay, there is an 18.6 mile state-maintained road that terminates at the east end of Iliamna Lake, where watercraft and transport barges may be used to access Iliamna. The route from Williamsport, over land to Pile Bay on Iliamna Lake, is currently used to transport bulk fuel, equipment and supplies to communities around the lake during the summer months.

Also during summer, supplies are barged up the Kvichak River, approximately 43.4 miles southwest of Iliamna, from Kvichak Bay on the North Pacific Ocean.

A small run-of-river hydroelectric installation on the nearby Tazamina River provides power to Nondalton in the summer months. Supplemental power generation using diesel generators is required during winter months.

5.4 Local Resources

Iliamna and surrounding communities have a combined population of just over 400 people. As such, there is limited local commercial infrastructure except that which services seasonal sports fishing and hunting.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 4: Groundhog property topography.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

5.5 Physiography

Property elevation ranges from 3074 ft amsl (937 m) at Groundhog Mountain to 306 ft (93 m). The area consists of rolling hills and low mountains separated by wide, shallow valleys blanketed with glacial deposits that contain numerous small, shallow lakes and streams.

Tundra plant communities (mixtures of shrub and herbaceous plants) cover the project area. Willow is common only along streams, and sparse patches of dense alder are confined to better drained areas where coarse soils have developed. Poorly drained lowland regions support black spruce and marsh vegetation.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

6 History

The history of the Groundhog prospect began with the expanded exploration of the adjacent Pebble deposit by the Hunter-Dickinson Group in 2001. Mining claims over the Groundhog prospect area were staked up to the edge of adjacent Pebble claim block by AERI on behalf of a private investor between December 2004 and February 2005. AERI and AES share two owner-investors and AERI contracted preliminary investigations to AES which included geologic mapping, sampling, a CSAMT geophysical survey and a dipole IP survey between 2005 and 2007. The business relationship between AERI and the initial investor were dissolved and ownership in the Groundhog project claims was reassigned to AES in 2009. The following year the property was optioned to Kennecott Exploration (KEC), a subsidiary of Rio Tinto Corporation. At that time Rio Tinto was a 19.8% owner of the adjacent Pebble deposit.

In June 2010 KEC commissioned a detailed high resolution helicopter-borne aeromagnetic geophysical survey over the Groundhog project area and a ground-based "deep-looking" 3D magnetotelluric (3DMT) survey.  In Jan 2011 KEC applied for drilling permits for seven sites based on the aeromagnetic data. In July 2011 they commenced a VIP (reconnaissance induced polarization) survey followed immediately by dipole IP surveys along specific areas of interest. During the same 2011 summer field season KEC conducted geologic mapping and sampling (Laberge, 2011).

No further fieldwork was performed by KEC after 2011 and in 2014 Rio Tinto donated its shares in Pebble to local charities and withdrew from the project.

In 2014 Chuchuna was incorporated with the Groundhog project as the principle asset. In April 2017 Quaterra entered into an agreement with Chuchuna with Quaterra providing $5 million over five years in exploration spending, later amended to six years, in order to earn a 90% interest in Groundhog. Quaterra is also required to pay a lump sum of $3 million at the end of the sixth year. Quaterra has no obligation to exercise its option and can terminate the agreement at its discretion annually. Chuchuna is the operator of the project and plans, implements and manages exploration field programs as set out in a budget and work plan approved by Quaterra.

During the 2017 field season three of the previous IP lines were extended to permit greater signal penetration-depth together with a one new additional line. From August to September 2017 four drillholes were completed at Groundhog targeting IP anomalies in addition to further surface geologic mapping and sampling. Drill results are discussed further in the Section 10.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

In 2019, 1664 line-km ZTEM and magnetic survey was flown and interpreted (Inman, 2019), 60 additional claims were staked together with a modest program of surface sampling and mapping.   


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

7 Geological Setting and Mineralization 

7.1 Regional Geology

[The following section is excerpted from Gaunt et al., 2018 from their regional geology description of the adjacent Pebble deposit, itself derived largely from Goldfarb et al. (2013).] 

The tectonic and magmatic history of southwest Alaska is complex interaction between the formation of sedimentary basins between tectonostratigraphic terranes, amalgamation of these terranes and their translation along crustal-scale strike-slip faults, and episodic magmatism and formation of related mineral occurrences (Plafker and Berg, 1994).

The allochthonous Wrangellia superterrane comprises the amalgamated Wrangellia, Alexander and Peninsular oceanic arc terranes that approached North America from the southwest in the early Mesozoic.

West-dipping subduction beneath the superterrane formed the Late Triassic to Early Jurassic Talkeetna oceanic arc, which is now preserved in the Peninsular terrane east of Pebble (Figure 5).  Several foreland sedimentary basins dominated by Jurassic to Cretaceous flysch, including the Kahiltna basin that hosts the Pebble deposit (Kalbas et al., 2007), formed between Wrangellia and pericratonic terranes and previously amalgamated allochthonous terranes of the Intermontane belt (Wallace et al., 1989; McClelland et al., 1992).

Basin closure occurred as Wrangellia accreted to North America by the late Early Cretaceous (Detterman and Reed, 1980; Hampton et al., 2010). Between approximately 115 to 110 Ma and 97 to 90 Ma, the strata in the foreland basins were folded, complexly faulted and subjected to low-grade regional metamorphism (Bouley et al., 1995; Goldfarb et al., 2013). Intrusions at Pebble are undeformed (Goldfarb et al., 2013) and were probably emplaced during a period when at least local extension occurred across southwest Alaska in the mid-Cretaceous (e.g. Pavlis et al., 1993).

Since the early Late Cretaceous, deformation in southwest Alaska has occurred mostly on major dextral strike-slip faults, broadly parallel to the continental margin. The major Denali fault in central Alaska forms the contact between the Intermontane Belt and the collapsed flysch basins (Figure 5). Smaller, subparallel faults are located south of the Denali fault, and the Pebble district is located between what are probably terminal strands of the Lake Clark fault zone; Shah et al., 2009). The Lake Clark fault zone marks the poorly defined boundary between the Peninsular terrane to the southeast and the Kahiltna terrane, which hosts Pebble, to the northwest. Haeussler and Saltus (2005) propose about 16.1 miles of dextral offset along the Lake Clark fault zone, most of which is interpreted to have occurred prior to approximately 38 to 36 million years ago. Recent field studies of geomorphology along the Lake Clark fault indicate that this structure has not experienced seismic activity for at least the last 10,000 years (Haeussler and Saltus, 2005, 2011; Koehler, 2010; Koehler and Reger, 2011). Other sub-parallel strike-slip faults also form terrane boundaries in the region, including the Mulchatna and Bruin Bay faults (Figure 5). Goldfarb et al. (2013) propose that most or all movement on these smaller structures occurred during oroclinal bending in the Tertiary, after formation of the Pebble deposit.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 5: Location of Groundhog within regional geology of SW Alaska (modified from Gaunt et al., 2018)


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

7.2 Local and property geology

There are three salient features of the local property-scale geology relevant to the regional geology framework described in the preceding section.

First, the topographic high portions of the property are underlain by Tertiary-aged volcanic, volcaniclastic and hypabyssal intrusive rocks. Second, this package of rocks overlies older deformed, Kahiltna-flysch sequence metasediments intruded by Mesozoic-aged igneous rocks. This package can be observed in scattered outcrop in the topographically lower portions of the property. This basement sequence is directly correlative with the package hosting the Pebble deposit. Finally the entire property is variably mantled by recent glacially derived deposits. The details of this are discussed below. Much of the property scale geology was elucidated by KEC in 2010-11 and described in the internal company report of Leberge (2011), from which the following descriptions are excerpted.

7.2.1 Jura-Cretaceous metasediments 

The oldest unit exposed on the property is a flysch sequence of fine-grained, light green, thinly bedded siltstone, mudstone and massive greywacke. Bedding is commonly well preserved in these rocks, with thin beds a few centimeters thick. The sediments have been regionally metamorphosed from greenschist to lower-amphibolite facies with some middle amphibolite facies contact metamorphism near Jura-Cretaceous mafic intrusions locally containing clinopyroxene ± cordierite. The mineralogy and chemistry suggests that these sediments are andesitic in composition. This unit is interpreted to correlate with the Kahiltna flysch (Koksetna River sequence?).

7.2.2 Jura-Cretaceous intrusive rocks

The Jura-Cretaceous sedimentary sequence is intruded by some intermediate to mafic intrusive bodies a few kilometers in length. These intrusions are mainly composed of fine- to medium grained gabbro and form strong magnetic anomalies. The three main intrusions have been referred to, from south to north, as Alpha, Beta and Gamma. Alpha is Late Jurassic medium grained ophitic gabbro dated by U-Pb at 149.2 ± 0.3 Ma. It is commonly banded, with 2-10 mm thick alternating leucocratic and mesocratic bands. Beta is a Late Cretaceous medium-grained biotite gabbro, yielding a U-Pb age date of 98.2 ± 0.2 Ma. It is generally equigranular, massive, with local K-feldspar veins and epidote veinlets. Gamma is a fine-grained, magnetite-rich, massive gabbro, likely of Cretaceous age. It is very poorly exposed and has only been observed at one outcrop.

Veinlets containing pyrite and chalcopyrite have been observed on Alpha and Beta, but no significant mineralization was found. Beta yielded the highest Cu content with values up to 0.5%. Au values were consistently low in these intrusions, with Au/Cu ratio of ~0.2 (ppm/%).


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

7.2.3 Tertiary Volcanics

Tertiary volcanic rocks represent the most common and best exposed units on the property. It is a sequence of volcanic flows and tuffaceous beds of various compositions which are not easily split in lithological map units. The units presented here attempt to group some lithologies for simplification.

7.2.3.1 Intermediate Volcanic Rocks

This unit is composed mostly of porphyritic dacite and massive to porphyritic andesite. Euhedral plagioclase phenocrysts up to 3 mm are common in these rocks, as well as smaller subhedral clinopyroxene phenocrysts <1mm in size. The matrix varies from a light grey glassy matrix to a medium grey to purplish-grey fine-grained matrix. These rocks are moderately magnetic. Note that some rhyolitic to intermediate tuffaceous beds and minor basalt are also present within the unit.

7.2.3.2 Intermediate Tuffaceous Rocks

A volcaniclastic sedimentary unit of lithic intermediate tuff has been mapped above the intermediate volcanics. It is composed mainly of grey, fine-grained andesitic volcaniclastic rocks, with minor amount of white, fine-grained porphyritic rhyolite and rhyolitic tuff. These rocks are locally bedded and commonly have the appearance of a siltstone. They are either ash to lithic tuffs or volcaniclastic siltstone.

7.2.3.3 Mafic Volcanic Rocks

Sub-horizontal basaltic flows are well exposed at higher elevations on Groundhog Mountain, dipping at shallow angle to the south. Flows are 10-30 m thick and commonly columnar jointed. The basalt is dark-grey, very magnetic, fine-grained and massive. Thin rhyolitic tuff is locally interbedded within the basaltic sequence.

7.2.3.4 Rhyolitic Tuff

Although rhyolitic tuff occurs throughout the Tertiary volcanic package on the property, some beds have been mapped independently. These rhyolitic to rhyodacitic tuff are white, fine grained, and commonly porphyritic, with small euhedral quartz and/or plagioclase phenocrysts up to 2 mm in size. The matrix is glassy to aphanitic, locally banded. These include ash tuffs, crystal tuffs and welded tuffs.

7.2.3.5 Volcanic Breccia

Two small lenses of volcanic breccias have been mapped on the north slope of Groundhog. These breccias are composed of angular volcanic fragments generally a few mm in size, but locally up to 10 cm, in a fine-grained, light-green matrix. It is not clear whether these breccias are truly volcanic or cataclastic breccias.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

7.2.3.6 Tertiary Intrusive

Rubble crop of intermediate intrusive rocks are present on the ridge extending northeast from the peak of Groundhog. Because these rubble crops are located on the ridge and within zones of subcrop, it is believed that this rubble and boulders are locally derived. This unit is a medium to fine-grained, light-colored, leuco-diorite with hornblende, magnetite, biotite and common secondary epidote. The diorite is strongly magnetic, and the extent of the unit was interpreted from the magnetic data. Whole-rock composition indicates it is a silica-saturated alkalic intrusion.

7.2.4 Quaternary Geology

Hamilton and Klieforth (2010) prepared a detail surficial geology report and map of the Iliamna D6 and D7 quadrangles. Portion of their mapping extends on to the southern tip of the Groundhog property.

Their mapping and analysis identified the latest Wisconsin-aged ice advance (Newhalen stade) as responsible for the mantling moraines present along the southern property boundary at high elevations on the flanks of Groundhog Mountain. Their inferred ice-flow direction was from the northeast flowing to the southwest into the Iliamna Lake drainage basin.

7.2.5 Structural Geology

7.2.5.1 Folding

Deformation observed on the Groundhog property is dominated by late brittle faults that cut through the Tertiary sequence. Outcrop-scale folding has not been observed in any unit, but the Jura-Cretaceous sedimentary package is regionally known to be affected by broad, open folding. The Jura-Cretaceous sediments generally dip to the north 60°-70°, but dip 35°-65° to the south in the vicinity of the Alpha anomaly. Tertiary stratigraphy, well exposed on Groundhog Mountain, appears upright and is locally tilted ~10° to the south-southwest.

7.2.5.2 Faulting

Most faults on the property have been interpreted from the airborne magnetic data acquired in 2010. Two major sets of faults have been interpreted, one striking northeast and the other striking west-northwest to northwest. The northwest structures appear to be cut by the northeast faults. Because of a poor understanding of the Tertiary stratigraphy, the displacement on these faults is poorly constrained. By extending faults from the Pebble property, combined with IP data observations, the northeast-striking faults appear to be normal faults dipping to the southeast. The most prominent of the NE-trending fault continuing along strike from the Pebble deposit is identified as the ZG Fault at Groundhog.

Fault breccia has been observed on multiple Tertiary outcrops and as rubble crop, commonly where faults had also been interpreted from the magnetic data. These cataclastic breccias are clearly the result of brittle deformation along Tertiary or later faults. Fault breccias are cutting though volcanic and volcaniclastic units, contain angular fragments a few millimeters to a few centimeters in size, and are partially to fully indurated.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 6: Property geology (Leberge, 2010) 


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

8 Deposit Type

The adjacent Pebble deposit is described as a copper-gold-molybdenum porphyry deposit (Gaunt et al. 2018). They further go on to state:

"Pebble has one of the largest metal endowments of any gold-bearing porphyry deposit currently known. Comparison of the current Pebble resource to other major gold-bearing porphyry deposits shows that it ranks at or near the top in terms of both contained copper and gold. In fact, Pebble is both the largest known undeveloped copper resource and the largest known undeveloped gold resource in the world today."

[The author has not verified this information, and it is not necessarily indicative of the mineralization on the Groundhog Project.]

This observation is the basis for the mineral deposit type being explored for at the Groundhog property, specifically all exploration to date has been focused on finding a similar copper-gold-molybdenum porphyry deposit.

The characteristics of porphyry copper deposits are summarized by Sinclair (2007):

Porphyry deposits are the world's most important source of Cu and Mo, and are major sources of Au, Ag, and Sn; significant byproduct metals include Re, W, In, Pt, Pd, and Se. They account for about 50 to 60% of world Cu production and more than 95% of world Mo production. In Canada, they account for more than 40% of Cu production, virtually all Mo production, and about 10% of Au production. Porphyry deposits are large, low- to medium-grade deposits in which primary (hypogene) ore minerals are dominantly structurally controlled and which are spatially and genetically related to felsic to intermediate porphyritic intrusions. They are distinguished from other granite-related deposits such as skarns and mantos by their large size and structural control, mainly stockworks, veins, vein sets, fractures, and breccias. Porphyry deposits typically contain hundreds of millions of tonnes of ore, although they range in size from tens of millions to billions of tonnes; grades for the different metals vary considerably but generally average less than 1%. In porphyry Cu deposits, for example, Cu grades range from 0.2% to more than 1% Cu; in porphyry Mo deposits, Mo grades range from 0.07% to nearly 0.3% Mo. In porphyry Au and Cu-Au deposits, Au grades range from 0.2 to 2 g/t Au. Associated igneous rocks vary in composition from diorite-granodiorite to high-silica granite; they are typically porphyritic epizonal and mesozonal intrusions, commonly subvolcanic. A close temporal and genetic relationship between magmatic activity and hydrothermal mineralization in porphyry deposits is indicated by the presence of intermineral intrusions and breccias that were emplaced between or during periods of mineralization. Porphyry deposits range in age from Archean to Recent, although most economic deposits are Jurassic or younger.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

9 Exploration

On account of the geologically perspective interval of rocks at the Groundhog property being covered by Tertiary-aged and younger rocks and unconsolidated material much of the exploration has utilized geophysical methods. However a systematic ground-based geologic mapping program has been completed as well as selected areas covered by geochemical soil sampling. Four widely-spaced areas have been tested with reconnaissance core drilling.

Details are discussed below in broadly chronological order subdivided into geophysical surveys and surface geological mapping and sampling programs. The following section on geophysical surveys is largely based on an internal company report (Inman, 2019) cited without direct attribution.

All exploration work conducted after April 2017 was conducted on behalf of Quaterra.

9.1 Geophysical surveys

9.1.1 2006 to 2007 CSAMT and IP

In August and September 2006 Zonge International was contracted to perform a CSAMT survey over the southern portion of the claim block. A single line (7.8 line-km) data was collected and resistivity was measured and processed both with 1D and 2D inversion techniques. The following year in early spring 2007 one line (4.8 km long) of dipole-dipole IP was completed along the CSAMT line from stations 2600N to 7400N, essentially the NW portion of the CSAMT line. The survey was completed with 150m dipoles and readings to N=8 which generally results in a depth of investigation equal to 250-350m below surface. The resistivity section is very similar to that of the CSAMT; i.e. mixed high resistivity and conductivity to a depth of 150m (volcaniclastics and intermediate volcanics) and conductive unit (<50 ohm-m) extending to the bottom of the section near 350m depth. The IP response is very low over the entire line (<4 mrads) to the full depth of the section. It would appear the use of 150m dipole size was insufficient to 'see' through the Tertiary volcanic rocks; except for the odd station at the largest dipole separation (N=8) which is anomalous at four locations: 4250, 5400, 6400 and near the NW end of the line at 7200. These stations are shown as yellow dots in Figure 9. There are at least two possible explanations of these results:

1. The anomalous stations are the result of alteration/mineralization within the Tertiary volcanic rocks; or

2. The 150m dipole spacing was insufficient to 'see' through the Tertiary volcanic rocks except in a very few areas (as noted) where anomalies were just detected sourced from alteration/mineralization from below at a depth exceeding 350m, within the pre-Tertiary basement rocks. These small and isolated 'peeks' extend over a distance of 3500m along the IP line and could be considered leakage from a deeper zone.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

9.1.2 2010 to 2011 geophysical surveys

KEC commissioned a helicopter-borne magnetic survey by MPX Geophysics, Ltd. in June 2010. A total of 1,745.7 line-kilometers of data were acquired over a total area of 314.7 km². The survey blocks were flown at a nominal mean terrain clearance of 70 meters (40 meters for the magnetic sensor). The survey blocks were flown along N-S (001.5°) flight lines separated by 200 meters, and E-W (091.5°) tie lines at a line separation of 2000 meters.

Three significant areas of magnetic highs were detected: Alpha (gabbroic intrusive in the Groundhog Mountain area); Beta (gabbroic intrusive approximately 10km NNW of Alpha and Gamma (unknown source) 16 km NNE of Alpha. Figure 7 shows the extent of the aeromagnetic survey with named anomalies.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 7: 2010 aeromagnetic survey Groundhog project

In July 2010 a ground-based magneto-telluric survey (MT) consisting of 185 stations covering an area of 135 km2 with the data reduced to an 800 by 800 m grid. The survey covered nearly all of the magnetic high characterizing the Groundhog and Pig Mountain area EXCEPT for the Alpha magnetic high itself. Both 2D and 3D inversions of the MT resistivity data were completed.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

A thick, layered conductive feature is mapped in the southern portion of the area and was presumed to be indicative of Tertiary volcanic rocks exceeding 500m in depth. The MT 3D model would suggest the thickest interpreted Tertiary rocks occur at the SW edge of the claim block thinning to the N and NE from that point.

Within the MT survey area a significant NW-SE trending high resistivity (>2000 ohm-m) feature and a NNW-SSE trending low resistivity (<80 ohm-m) feature dipping to the NE can be noted.

From July to August 2011 KEC commissioned Zonge International to collect vector IP survey (VIP), or reconnaissance IP, in the areas where the MT survey had identified a relatively shallow resistive feature. Chargeable anomalies from the VIP survey were then followed up with some dipole-dipole IP lines. The purpose of the double-dipole IP survey was to identify chargeable features that could be associated with porphyry-style alteration (Leberge, 2011).

The VIP survey consisted of measurements at 94 stations utilizing three transmitter setups covering an area of 89.2 km². The resultant data was gridded at a 1 km resolution.

IP surveys were run that included VIP as well as 6 lines of dipole-dipole IP, utilizing 300m dipoles to achieve a depth of investigation exceeding 500m depth and in most cases exceeding 600m depth.

The VIP survey layout is similar to the MT layout with a grid of receiver stations on 1000m centers. A total of 94 stations were collected using three different transmitting locations to achieve coverage and signal strength over an area of nearly 9000 hectares. The VIP survey was offset to the north relative to the MT survey, but did cover the features noted earlier in the MT survey but also fell short of covering the gabbro intrusive and main magnetic anomaly to the northwest (Alpha). Figure 10 shows the individual VIP stations with IP values in mradians and an approximate outline of the anomalous areas. The VIP identified two major areas of IP anomalies; a NW sector and a SE sector. The NW sector follows the high resistive body defined in the MT data and includes the copper anomalous gabbro intrusive. The SE sector is also open to the south and east and contains anomalous stations east of the ZG fault zone; however, VIP stations are indicative of a general area of IP response and the source of the anomalous stations east of the fault could actually lie back to the west towards the bipole transmitters.

Six dipole-dipole IP survey lines (18 line-km) with dipole spacing of 300 meters and N=1 to 8 were also completed in 2011. Lines are oriented NW-SE except for line 4 which was oriented NE-SW and crosses lines 3 as well as the area between lines 1 and 6 (Figure 8). In 2017, prior to drilling, the three pre-existing dipole-dipole IP lines were extended as a means to increase the depth of analysis with the same dipole spacing of 300 meters but with N=1 to 10. The depth of investigation of this survey exceeds 600m below ground surface. Three of the lines, L1, L3 and L5 are extensions and overlaps of lines run in 2011. Line 10 is a new line located SW of line 3. Zonge International performed the geophysical survey under contract.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 8: IP line locations for ground IP surveys completed in 2007, 2011 and 2017

9.1.3 Discussion of 2011 and 2017 IP results

The results of the IP surveys indicate significant anomalies occur on every line. It is problematic to correlate anomalies from line-to-line because of the wide spacing between lines, which is as great as 4 km (lines 5 and 6) and the minimal spacing of 1 km (lines 3, 6, 10, 1 and 2). The anomalies are shown as color-coded bars in Figure 9 along each line, with the shallower anomalies (<300m depth to top) above the line itself and the deeper anomalies (>300m and generally 500m or greater) below the lines. The strength of the anomalies is color-coded as follows:

Intense - red - >50 mradians; ~7%+ by volume metallic sulfides

Strong - orange - 40-50 mradians; 5-7% by volume metallic sulfides

Moderate - green - 25-40 mradians; 3-5% by volume metallic sulfides

Weak - light blue - 15-25 mradians; < 3% by volume metallic sulfides


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 9: IP surveys with anomalous chargeability areas indicated

Figure 10  summarizes the results of the 2011 VIP survey as identifying two major sectors of anomalous VIP data; a NW sector extending from Groundhog Mountain 4-5 km further to the NW and a SE sector on the east side of Groundhog Mountain. Further, the VIP survey seems to have established the limits of the shallow anomalies defined by the dipole-dipole surveys, although the dipole-dipole survey provides much greater detail about the individual anomalies; specifically, depth, extent and strength.

NW Sector- Two dipole-dipole lines, 5 and 6, contain shallow 'intense' IP anomalies near the NW ends of both lines, and both extend beyond the ends of the lines. The anomalous zone on line 5 occurs within the immediate area of the Cu-anomalous gabbro intrusive. The anomaly on line 6 (unknown full extent) occurs in an area that is indicated to be an extension of the gabbro intrusive based on the helicopter magnetic map. Outcropping gabbro is 1500m to the north, and yet the magnetics indicate it is likely to extend beyond the apparent outcrop to the south.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 10: VIP interpretation

SE Sector - Zones of 'intense, strong and moderate' IP anomalies occur on all of the remaining lines with the strongest group occurring on Line 3. A number of these zones occur near the top of Groundhog Mountain and west of the SE sector. And an additional tantalizing target occurs at depth exceeding 500m, dipping to the E and SE. These IP anomalies are generally moderate in strength but this could be a result of the depth at which they occur. Further, it appears the anomalies continue to the point of offset along the ZG normal fault zone, at which point the zones are terminated or more likely they are down-dropped beyond the ability of 300m dipole-dipole IP to sense the response; which is the case at the east side of Pebble East. The deep anomalous zones occur on lines 6, 2, 1, 3 and 10; and there is indication on line 10 of a deep response on the down-dropped side of the fault (the response could also be shallower but off-line to the south). Additionally, the shallow 'intense' anomalies on line 3 appear to be connected to and likely sourced (leakage) from a more extensive deep zone.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Summarizing the IP results, a major zone of intense IP anomalies possibly 4 km in size has been delineated in the NW sector and remains open in all directions. Shallow zones of narrow but intense/strong IP anomalies occur in the SE sector and appear to be sourced from a more extensive, deep source.

9.1.4 2019 ZTEM and magnetics

In parts of August and September 2019 a helicopter borne ZTEM and magnetic survey was flown over the southern portion of the claim block by Geotech, Ltd. 1664 line-km were flown covering an area of 467 km2. Line spacing was 300 m with calculated resistivities recorded at frequencies from 30 hz to 720 hz. Of interest and relevance is a case study published by Geotech of a similar ZTEM survey over the adjacent Pebble deposit (Geotech, 2015).

ZTEM is very similar to MT and the results of the 2d inversion of the ZTEM data are very similar to the 2d and 3d inversion of the data from the 2010 MT survey.  It is noted that ZTEM and MT do NOT measure IP response, but rather measure changes in resistivity. However, IP response from sulfides is often associated with changes in resistivity typical of various alteration types.

The ZTEM survey data were process and interpreted with nineteen targets identified based on similarities to other ZTEM surveys over known porphyry deposits, including the adjacent Pebble deposit (Inman, 2019). Targets with a top ranking, rank 1, most closely resemble the response to known deposits, whereas ranks 2 and 3 are of interest but less similar to the known deposits. The targets shown in Figure 11 are colored red are rank 1 anomalies, those colored orange rank 2 and blue is used for the lowest rank 3.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 11: ZTEM targets


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

9.2 Surface geochemical sampling and mapping 

9.2.1 2006 to 2008

Prior to KEC involvement in the Groundhog project 460 soil, rock chip and stream sediment samples were collected using conventional sampling methods in conjunction with 256 vegetation samples. None of the results were deemed anomalous with subsequent follow-up work.

9.2.2 2010 to 2011

Following identification of the Alpha and Beta magnetic anomalies by KEC in 2010, rock chip and soil sampling over the areas indicated the presence of anomalous copper in gabbroic rocks with values as high as 1810 ppm Cu at Alpha and 5060 ppm Cu at Beta.

KEC focused their surface sampling for lithological characterization to aid in their mapping, collecting 19 whole rock samples for major and trace element geochemistry as well as selective geochronology samples.

13 rock and 60 soil samples were recorded as collected as part of the property-wide geochemical database.

9.2.3 2017 to 2019

In addition to 384 DDH core samples discussed in section 10, 105 rock, soil and stream silt samples were collected primarily along IP line extensions.  In 2019, in a program designed to address whether selective leach techniques could identify geochemical anomalies beneath the younger Tertiary cover 66 selective leach samples were collected along with 7 till samples within the southern limits of the claim block.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 12: Rock chip samples at Groundhog 2006 - 2019


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 13: Soil samples at Groundhog 2006 - 2019


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 14: Stream silt samples at Groundhog 2006 - 2019


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 15: Geologic observations at Groundhog 2006-2019


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

9.3 Geochronology at Groundhog

The primary mineral deposit objective at Groundhog is a Cu-Au-Mo porphyry deposit. The regional geology shows that mineralization at the adjacent Pebble deposit is closely constrained in age and limited to intrusive rocks with ages between 89 to 98 Ma, emplaced into Jurassic to Cretaceous-aged flysch.  At Groundhog, as at Pebble, rocks of this age are covered by younger Tertiary volcanic, sedimentary and hypabyssal intrusive rocks. As a consequence selective rock units have had their ages calculated using a variety of radiometric isotopic techniques. The author is aware of the following ages at the Groundhog property. The degree of specificity of the location as referenced in the description below reflects information shared with the author.

9.3.1 Alpha anomaly area

KEC report U/Pb ages of 149.2±0.3 Ma on sphene/titanite collected from a gabbro in the Alpha magnetic anomaly. AES report two other U/Pb ages on zircon (115±1.2 Ma and 152.4±0.8 Ma) separated from fine grained and equigranular diorites from the Alpha anomaly collected approximately 1 km west of DDH CHU-17-003 and 03A.

9.3.2 Beta anomaly area

KEC report U/Pb ages of 98.2±0.2 Ma on zircon collected from a gabbro in the Beta magnetic anomaly (Laberge, 2011).

9.3.3 Groundhog Mountain area

AES cites two USGS ages from volcanic rocks collected towards the top of Groundhog Mountain of 38.5 and 39.7 Ma. In 2011 KEC submitted a diorite sample (JL-122) (UTM coordinates: 380689E 6654390N) for TIMS U/Pb zircon analysis. By the time the results were finalized KEC had exited the project and it was verbally reported to be Tertiary in age and similar to the USGS ages cited above.

In 2018 AES submitted two samples to the USGS from DDH CHU-17-004 for U/Pb zircon analysis. Both ages were reported as Tertiary (64.9 and 64.2 Ma).


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

10 Drilling

The first drilling at the Groundhog property was in 2017 when five widely spaced core holes were drilled in 2017 (two were from the same location). 1241 m core was recovered.

Table 3: Drillhole collars

Hole #

Northing

Easting

Elevation (m)

Bearing

Dip

Depth (m)

CHU-17-001

6657152

05V0379620

356

N45E

-80

274.6

CHU-17-002

6659056

05V0383700

159

S45W

-80

159.1

CHU-17-003

6661238

05V0381412

172

S50E

-80

148.4

CHU-17-003A

6661239

05V0381411

172

S65E

-70

358.7

CHU-17-004

6652136

05V0383455

375

S45E

-77

300.2

A light-weight, helicopter transported drill rig was used for all holes which were drilled with NQ sized core. The holes were all targeting identified IP anomalies.

CHU-17-001 was targeted at an IP anomaly identified by KEC in 2011 along their IP line 6. The anomaly was projected to be within approximately 200 m from the surface. Lithologies described from core to the end of the hole included a sequence of tuffs, breccias and volcaniclastic sediments. Mineralization was weak consisting of veinlets of pyrite and carbonate with sulphide content increasing downhole to 5% in places. Traces of chalcopyrite and sphalerite were reported. CHU-17-001 reported the highest Zn assays of all drillholes with 1980 ppm from 182.9 - 184.8 m and averaged 631 ppm over an 8.5 m interval from 143.3 to 151.8 m. The interpretation of the stratigraphy was that the entire drillhole sampled Tertiary-aged rocks. Regrettably drilling did not reach the main IP anomaly (Figure 16) and the possibility remains that stronger, deeper IP anomaly contain significant mineralization.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 16: DDH CHU-17-001 on IP Line 6 section


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

CHU-17-002 was targeted at an IP chargeability anomaly first identified by KEC but the line was extended and refined by AES in 2017 along IP survey line 5. The anomaly was interpreted to be within 100 m of the surface. The entire hole was within grey to black bedded siltstone interpreted to be part of the Kahiltna flysch sequence. Several high-strain fault zones were noted in the log. Trace to 0.5% pyrite was reported throughout the hole with occasional zones as high as 4%. Of the four holes drilled in 2017 CHU-17-002 had the lowest maximum assay values for Cu, Mo and Zn. None of the alteration or mineralization was described as porphyry-related or indicative of nearby intrusive activity. It was concluded that the hole was of sufficient depth to reach the IP anomaly. Samples were collected for geophysical property testing returned chargeability values ranging from 70 to 42 mrads in accord with values measured on the IP survey.

CHU-17-003 (and 003A) were drilled 3.1 km NW of CHU-17-002 along the same geophysical line likewise targeting an IP anomaly as well as being within the large "Alpha" aeromagnetic anomaly. Hole 3 was lost at 148.4 m and hole 003A was offset and drilled to depth of 358.7 m. Drill core contained a sequence of basalt, clinopyroxenite and gabbro. Alteration was moderate to strongly propylitic with abundant epidote, chlorite and quartz/carbonate veining. Sulphides to 2% were mostly pyrite but with regular trace amounts of visible chalcopyrite. High magnetic susceptibilities were recorded on core as well as up to 10 % magnetite noted in thin section of core samples (Deininger, 2018). Maximum assay values for Au, Cu and Mo for all holes drilled in 2017 were measured with values of 0.892, 612 and 177 ppm respectively. In addition to the maximum assay values CHU-17-003/3A had broad, anomalous high-background Cu over much of its length; collectively from 6 to 25 m 235 ppm Cu, 54 to 97 m 253 ppm Cu, 295 to 307 m 340 ppm Cu and 313 to 325 m 281 ppm Cu.

A significant IP anomaly remains at depth beneath CHU-17-003 as the drillhole failed to reach sufficient depth (Figure 17).


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 17: DDH CHU-17-003/3A on IP Line 5 section


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

CHU-17-004 was drilled 6.3 km SE of CHU-17-001 targeting an IP chargeability anomaly along IP line 3. The hole intersected predominantly diorite porphyry consisting of altered clinopyroxene, plagioclase phenocrysts in a dark altered matrix. Alteration consisted of epidote, carbonate and clays cut by later quartz pyrite veining. Assays down the length of the drillhole showed background Au, Cu and Zn values, with the maximum reported values of 6 ppb Au, 89 ppm Cu and 341 ppm Zn.  Two U/Pb zircon ages of 64.2 and 64.9 Ma were returned from core samples of diorite collected at a depth of 147.5 and 285 m down hole respectively, and is interpreted as indicating that the age of intrusion, mineralization and the associated measured IP response as being Tertiary in age and younger than the Pebble-aged mineralizing event.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 18: DDH CHU-17-004 on IP Line 3 section 


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

11 Sample Preparation, Analyses and Security

11.1 Sample Preparation

11.1.1 Conventional surface rock, stream silt and soil samples

Specific details were not available to the author as to how conventional surface sampling was conducted from 2005 to 2017 at the property. There is no reason to conclude anything other than the typical methods used in the area were employed. These consist of rock chip sampling of exposed bedrock, silt-sized fractions of flowing stream sediment and soil samples (the predominant method used at Groundhog).

In 2019 37 soil samples, 34 rock and 7 stream silts were collected and analyzed.  Soils and silts are dried and sieved to pass 80 mesh (although curiously three stream silts were pulverized and split prior to analysis); rocks are crushed, split and pulverized.  Analysis for all rocks, silts and some soils was by ALS method code AuME-TL43. Subsets of soils were analyzed by ALS method code AuMe-ST43.  Both methods used a 25g sample dissolved in acids differing only in the minimum detection limit for Au. At the adjacent Pebble deposit these methods are all effective where mineralization is at or close to the surface. However in areas with thick glacial or post-mineralization cover these methods are less effective.

11.1.2 Vegetation sampling

Limited data from prior to 2010 suggest some vegetation sampling was undertaken. No documentation has been provided to document sampling protocols. There were no anomalous results or follow-up studies.

11.1.3 Selective soil leach 2019 

At the adjacent Pebble deposit the USGS published results of an orientation survey comparing different methods of selective elemental analysis of soil samples subjected to weak leaching by various solutions (Fey and others, 2008). Two methods were chosen for use at Groundhog, out of the suite tested at Pebble: an ionic leach method, and a cold hydroxylamine leach method, both provided by ALS Laboratories. A total of twenty-two sample sites were established on 2017 IP lines 1, 3, and 10. Three samples were analyzed from each site; all analyses were done by ALS Laboratories in Vancouver, after drying and preparation by ALS Laboratories preparation facility in Fairbanks. The analyses include Ionic Leach (AuME-MS23), Cold Hydroxylamine Leach (AuME-MS05), and traditional sieving to -80 mesh and total digestion (Au-ME-ST43).

11.1.4 Till heavy mineral sampling 2019

Seven samples of glacial till were collected in close proximity in the SE corner of the property. Sampling methodology involved collecting approximately 12kg of -8mm material from holes 30 to 50 cm deep into 5 gallon plastic buckets.

Samples were processed by Overburden Drill Management, Ontario, Canada and involved:


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

a) Collecting 500 g archival sample with all or portion of the archival split sieved to completion at 0.063 mm and -0.063 mm silt+clay fraction submitted for conventional geochemical analysis.

b) Panning the remainder for gold, PGMs and fine-grained metallic indicator minerals.

c) Separating nonferromagnetic heavy mineral fractions with SG of 2.8 to 3.2  and SG >3.2, with a grain size of  0.25-2.0 mm picked for porphyry Cu indicator minerals.             

d) Separating nonparamagnetic (>1.0 amp) with a grain size of 0.5-1.0 mm and 0.25-0.5 mm heavy mineral fractions for scheelite by UV lamping.                                                                                                                                                                                                                               

11.1.5 Drill core samples 2017

Four drill holes totalling 1241 m of recovered core have been collected. Of that 754.3 m was divided into 384 sample intervals and assayed during the 2017 drill program. Specific intervals were selected for sampling and not all NQ core was assayed. Core was halved via rock saw.

A total of 424 drill core samples, including 15 standards, 19 blanks, and 7 duplicates, were analysed during the 2017 drilling program. All samples were prepared and analysed by ALS Minerals. Sample preparation consisting of sample login, coarse crush and fine crush (CRU-31 and CRU-21), sample splitting (SPL-21), was performed at the ALS lab in Fairbanks, AK. A split was shipped and pulverization of the split sample to 85% <75 microns (PLU-31) and gold analysis (Au-AA23) was completed at ALS  Reno, NV, USA. Trace elements (ME-MS41) was completed at the ALS lab, Vancouver, Canada.

The raw samples were crushed in an oscillating steel jaw crusher (>70% of the sample passing through a 2mm screen), a 500 g riffle split was then pulverized to 85% passing through a 75-micron screen. Aqua regia digestion (ALS method ME-MS41) was performed for analysis of 51 elements: Ag, Al, As, Au, B, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, Ga, Ge, Hf, Hg, In, K, La, Li, Mg, Mn, Mo, Na, Nb, Ni, P, Pb, Rb, Re, S, Sb, Sc, Se, Sn, Sr, Ta, Te, Th, Ti, Tl, U, V, W, Y, Zn and Zr. The method utilizes a 0.5 g of prepared sample digested in aqua regia with the resultant solution analysed by induced coupled plasma mass spectroscopy (ICP-MS) finish.

Gold analyses were performed on a 30 g sub-sample using ALS method Au-AA23; fire assay fusion with atomic absorption spectroscopy (AAS) finish.

11.2 QA/QC procedures

The author is unable to comment specifically on the nature and extent of all quality control measures employed including check assays and other check analytical techniques used. Review of the drill core assay certificates show that the assay labs maintained and reported on internal quality control methods. The sampling documentation show sample blanks, standards and duplicates have been inserted but the results have not been collected and analyzed.  The author is not aware of any summary or analysis of QA/QC procedures.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

11.3 Sample Security

The author was not present during any of the sample collection and preparation for shipping and is unable to comment on specific sample security details. 

According to the NI43-101 reporting requirements a statement is required if any aspect of the sample preparation is conducted by an employee, officer, director or associate of the issuer. AES was significantly involved in collecting and submitting multiple soil, rock and drill core samples to assay labs.

11.4 Opinion on the adequacy of sample preparation, security, and analytical procedures

The author recognizes that during early stages of the exploration process many different methods are used to best identify an effective technique. That some analytical procedures have not demonstrated their effectiveness is not a criticism of the approach or of the method itself.

11.4.1 Quality Assurance

The Groundhog project covers two geological domains: an area where pre-Tertiary ("Pebble-aged") rocks are variably exposed (mostly north of UTM Northing 6655000) and a region to the south covered by Tertiary volcanic, volcaniclastic and intrusive rocks centered on Groundhog Mountain. Both domains are covered by glacial overburden. The author's concerns with geochemical sampling are that geochemical sampling techniques that may be appropriate for one domain have been used in less than optimal locations.  Specifically:

Glacial till samples were collected over a small portion of the property, at a high elevation within an area known to be underlain by a thick Tertiary section. The report of Hamilton and Klieforth (2010) map these tills as part of the last glacial advance from the NE moving to the SW. Any indicator mineralization would presumably be derived from off the property area if present. If it is argued that the till is locally derived and represents a geochemical sample of the immediate area, then conventional soil sampling techniques would presumably also be geochemically anomalous. It is the author's opinion that the till sampling does not provide meaningful data. 

The selective leach sampling likewise was collected entirely in the Tertiary-cover domain and while designed to test whether geochemical "leakage" could be observed across the ZG Fault the results reportedly were equivocal. The USGS orientation sampling at Pebble (Fey et al., 2008) showed the strongest response over the exposed and thinly covered by glacial material. For this reason the author considers the selective leach sampling results to not be meaningful in the area of the property where employed (but thinks the sampling technique could be useful over the "Pebble-aged" domain of the property).


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

11.4.2 Quality control

Going forward the author recommends a more formal and clearly documented approach to sample preparation, sample security and analytical methods used, as well as documenting the results of QA/QC procedures used at the end of each field season.

11.4.3 Summary statement on QA/QC

Pursuant to section 3.3 of 43-101 a summary statement on quality assurance and quality control is present thus:

The quality assurance and quality control measures applied and the data collected during the execution of the work being presented in this report are fit and adequate for their current purposes of early-stage exploration.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

12 Data Verification

12.1 Author's visit check sample verification

The Author was not present for the 2019 or prior season sampling and was unable to personally collect duplicate samples for verification purposes.

The author randomly selected and checked 10% of the rock and soil samples in the 2019 sample database against the assay certificates and found them all to be clearly tabulated and without errors.

Pre-2019 work has not been verified by the author. 

The existing core was properly stored and available for future examination and sampling should there be need in the future.

12.2 Drill database verification

The author examined the existing historic drillhole database. Where checked, assay values in the database matched with the corresponding assay certificates. Were the drillhole database to be used for resource calculations, the author would expect and require more detailed verification work, however for its current purpose of documenting detailed subsurface geochemical samples it is fit-for-purpose.

The author has not surveyed the DDH collars.

13 Mineral Processing and Metallurgical Testing

No mineral processing or metallurgical testing analyses have been performed on samples collected from the property

14 Mineral Resource

There are no mineral resources or mineral reserves estimates for the Groundhog project


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

15 Adjacent Properties

The Groundhog property lies adjacent to the Pebble project claim block. The current resource estimate is provided below copied from Gaunt et al. (2018) and has been publically released according to NI 43-101 standards. The author of this report has not verified the information and is accepting the reported data as stated.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Figure 19: Northern Dynasty's Pebble resource estimate in December 2017 (Gaunt et al., 2018).

Furthermore the author states unequivocally that the reported mineralization on the adjacent Pebble property in no way is indicative of mineralization on the Groundhog property (the subject of this report).

16 Other Relevant Data and Information

16.1 Environmental Studies, Permitting and Social or Community Impact

The southwest portion of the Groundhog claim block is the closest to the proposed Pebble mine area and the Upper Talarik Creek drainage, but the majority of the Groundhog claim block lies in a northward-draining catchment basin that flows away from the Pebble area. The Pebble project remains a highly visible and contentious project in Alaska with significant local community opposition. The author considers that success at Groundhog would be very difficult were the Pebble project terminated through a failure to receive all necessary permits.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

17 Interpretation and Conclusions

17.1 Interpretations

The Groundhog property lies in close proximity to the Pebble deposit. Groundhog has been the focus for the episodic exploration over the past fourteen years. A sizable body of data has been collected designed to identify whether similar mineralization to that seen at the adjacent Pebble project exists at Groundhog. Mapping, limited drilling and geochronology have demonstrated the presence of similar aged-rocks in a similar structural setting occur at Groundhog. To date no significant porphyry- Cu mineralization has been found on the property. The majority of attention has been focused on the southern portion of the property and significant areas of potential promising geochemistry around the Alpha and Beta magnetic anomalies remain underexplored.

The main exploration approach has been the use of a suite of geophysical tools: aeromagnetic, CSAMT, VIP, dipole-dipole IP and ZTEM surveys.  The magnetic survey has identified three magnetic anomalies that show good correlation with intrusive centers. The southernmost anomaly (Alpha) is associated with a Jurassic-aged gabbro significantly older than mineralization at Pebble. The Beta magnetic anomaly is associated with a Cretaceous-aged diorite, close in age to the Pebble mineralization and contains surface rock chip samples with values of 0.5% Cu. The resistivity and IP geophysical methods have largely been focused in the southern portion of the property largely covered by Tertiary-aged rocks and have outlined a SE and NW sectors. The SE sector contains shallow zones of narrow but intense/strong IP anomalies. A single DDH (CHU-17-004) into one of these anomalies showed the IP anomaly originating from Tertiary-aged intrusive rocks and associated mineralization and alteration. However geophysical interpretation of the data does not rule out an IP response from a more extensive deep source. The NW sector likewise contains major zones of intense IP anomalies and remains open. Both drillholes CHU-17-001 and CHU-17-003/3A were designed to drill test IP anomalies in the NW sector but failed to reach the target depths and neither drillhole reached the strongest part of the IP anomalies. 

The thickness of Tertiary cover is a significant constraint in interpreting the existing geophysical data. The majority of IP lines are south of the N6,655,000 line and any anomalies have to be evaluated as to whether they are sourced in the Tertiary cover or are derived from a deeper source. Surprisingly limited IP lines test areas known to have Pebble-correlative stratigraphy exposed at the surface or at least only covered by Quaternary glacial deposits. For example between IP Lines 5 and 6 just south of the Alpha anomaly there is a 4 km gap without data.

The true thickness of Tertiary cover at the southern end of the property is poorly constrained but estimates may be applied. These include the following constraints: KEC describe the Tertiary at Groundhog Mountain and having southward dips of between 0 to 10 degrees. In the vicinity of the upthrow-side of the ZG Fault a cross section indicates the base of the Tertiary would be at a depth of 800 meters below the surface using a 5 degree dip. These depths to the base of the Tertiary are comparable to those seen in published cross sections along strike at the Pebble deposit. On the down-throw side of the ZG Fault drilling at the Pebble East intersected Tertiary-thicknesses of 1400 meters. Without drill data there remains a large degree of uncertainty of the depth to pre-Tertiary rocks in the vicinity of the ZG Fault. Similarly the uncertainty in the Tertiary thickness impacts the interpretation of the IP geophysics data; at present the IP data is depth limited to approximately 350 m below the surface. Deep IP anomalies remain interpretable as either chargeable-zones beneath the Tertiary cover section, or as deep anomalies still within the Tertiary.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

A disinterested discussion of the exploration data collected to date at Groundhog would be amiss not to discuss potential for exploration ideas to fall into the trap of circular-thinking. The main attraction of the Groundhog property is its close proximity to Pebble.  The general geology can reasonably be extrapolated between the two areas; for example the ZG Fault is present on published cross sections at Pebble and is known to separate the Pebble West deposit from the buried, higher-grade Pebble East portion of the deposit. The ZG Fault can be traced via offsets in aeromagnetic trends onto the Groundhog property. The main difference in the geology of the two areas is that porphyry-mineralization is exposed at the surface at Pebble yet to date no evidence of any economic mineralization has been found in the southern portion of the Groundhog property, which is entirely covered by Tertiary rocks. In order to prospect beneath the Tertiary cover the majority of geophysics and geochemical techniques have been employed in this area. The best surface geology and geochemistry at Groundhog lie in the central to northern portions of the property, yet because of their distance from Pebble, the area has received less exploration.     

Conventional geochemical soil and stream silt sampling has not been effective to date on account of the glacial cover and Tertiary stratigraphy. A pilot program in 2019 to evaluate selective leaching and glacial till/heavy mineral analysis has also produced equivocal results. Regrettably the sampling for the pilot program covered a small area of the property with likely the thickest section of Tertiary cover. As an orientation program it failed to sample over a wide-enough area to encompass the known range of differing topography, vegetation, soil and overburden type areas. It is still possible that the selective leach soil sampling methods will be effective in areas without Tertiary cover and therefore it is suggested the method not be abandoned yet. 

17.2 Conclusions

Groundhog remains potentially-promising early stage exploration project targeting a porphyry Cu deposit.

As results of past exploration work at and nearby the property it can be demonstrated that:


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Independent constraints on Tertiary thickness are required to assist in interpretation of geophysical data and target selection.

Exploration efforts should be shifted to the areas around the Alpha and Beta magnetic anomalies where the surface geochemistry and stratigraphy are more favorable than the southern areas characterized by a thick Tertiary section.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

18 Recommendations

18.1 Phase 1: target refinement via addition data modelling

The primary goal of future exploration at Groundhog must be to return drilled intercepts from a mineralized porphyry system.  Selecting the best drill target is critical and to that regard it is recommended that a modest budget be allocated to extract additional information from the 2019 ZTEM survey with 3D inversion modelling of the data. The objectives of this work are twofold. The first is to help rank the existing ZTEM targets. Second, the inversion data should be examined to see if it provides information on the thickness of Tertiary cover in the southern portion of the property.

It is recognized that there are multiple reasons why depth modelling will not work including little to no resistivity contrast between the Tertiary cover and the Pebble-aged basement or that the Tertiary is thicker than the ZTEM can effectively resolve, however the great advantage of the Groundhog ZTEM survey is that it is a uniform dataset covering much of the property area. If the data is carefully interpreted in conjunction with the known geology it is possible that of the existing ZTEM anomalies one or two will become obvious priorities. The costs to do this additional work are modest compared to drill testing.

Without this additional 3D inversion modelling the focus for future geophysics work as well as targeting the source of anomalous geophysics data should be in the NW sector around the Alpha and Beta magnetic anomalies.

18.2 Phase 2: target selection for drill testing or ground-based IP

Decision making at Phase 2 presents a greater number of choices. What is discussed below represents anticipated options but other unforeseen choices may be viable following Phase 1 data modelling.

Best option: Following the data processing one or two existing ZTEM anomalies, either with or without additional constraints from the ground-based IP data, become high priority drill-ready targets. The proposed Stage 2 budget could be entirely directed towards the drilling costs.

The lest-best option will be that the Stage 1 data processing does not produce a clearly highest ranked target. This is essentially the situation at present. In this case the recommended course of action is to focus on the NW sector around the Alpha and Beta magnetic anomalies.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

18.2.1 NW Sector - Alpha Anomaly and ZTEM targets 9, 17, 13, 8 and 18.

There are two options to test these targets. Either four additional lines of dipole-dipole IP should be surveyed in addition to extending line 6 further to the NW and to the SE to connect with Line 1. Three of the additional lines will be spaced at 1km intervals between lines 5 and 6 and the fourth line will be an offset of 1km NE of line 5. Or alternatively two grids of vector VIP data in the NW sector and then, if necessary, a single dipole-dipole line to define a specific drill target.

The objective of the additional lines is to define the extent and character of the intense IP anomalies in the NW sector and to possibly to provide drill targets for 3 drill holes.

18.2.2 Existing IP anomalies on Lines 5 and 6

The existing IP anomalies that were partially tested by DDH CHU-17-001 and 003/3A remain as untested targets at depth. Regardless of the potential improvements from 3D inversion of the ZTEM data, these IP targets remain as top priority drill targets deserving of further drill testing. Special attention should be afforded to the inverted ZTEM data around these known IP anomalies in order to 'extend' the untested target zones on lines 5 and 6 into the areas of no ground data. If a decision is made to drill test to depth the known IP anomalies, having additional off-line ZTEM-generated targets should be identified for immediate follow-up targeting while the drill rig is on-site.

18.2.3 SE Sector - extension of ZG fault zone

Much attention has been spent on this area as the Pebble mineralizing system has been shown to extend under younger Tertiary cover. To date at Groundhog all the significant IP targets are very deep and shallow targets are not of great extent. Examination of the 3D inversion data should be examined carefully for evidence as to the thickness of the Tertiary in this sector. It may be that the results of the Phase 1 data modelling are equivocal in this region leaving a difficult choice of testing geophysical targets without knowledge of the overlying Tertiary cover thickness.  At the present point of knowledge the safest approach would be to not spend any further effort in the SE Sector; however this may change after the Phase 1 data modelling.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

18.2.4 Beta Magnetic Anomaly

The area at Beta of anomalous rock chip and soil geochemistry is large as is the magnetic anomaly defining the gabbroic intrusive at Alpha. Therefore it is recommended a vector VIP survey be conducted initially to define the general extent of a possible sulfide system.

Following the completion and interpretation of the VIP survey a single dipole-dipole line should be run in the best area in order to define the depth and size of a possible target. The data from this line when merged with the vector VIP data should result in an accurate map of the sulfide system at Beta.

Depending on the results returned at least one drill hole should be planned for to test the source of the best IP anomalies and copper geochemistry. One advantage of working in the NW sector is the shallow depth to potential targets and the existing drill rig should be of sufficient size to test IP and geochemical target.

Additional notes: vector VIP surveys assume a large transmitter/generator and two field receiver teams. This will greatly increase the speed of the survey and lower the cost. Helicopter support will be required and all geophysics should be done as early as possible in the area, so that drilling could potentially follow in the same field season.

18.3 Geochemistry

Continued application of selected leach soil samples is recommended within areas target by vector VIP survey in the Alpha and Beta areas. Sample lines are to have no larger than 150 m spacing between samples with lines starting outside, crossing and ending beyond anomalous VIP response areas. Sampling is to follow precise, documented procedures to ensure uniform sampling methods among field staff. Selective leach soil samples should be collected along any new IP lines in order to facilitate direct comparison of IP responses with geochemical anomalies.

18.4 Project supervision and data management

Sisyphus Consulting recommends that during drill core sampling and assaying the project be managed by people or persons independent of the Issuer. They would be responsible for documenting and supervising core sample handling and security from drill rig, through sample splitting and delivery to an assay lab. They would be responsible for implementing, documenting, maintaining and evaluating procedures for quality assurance/quality control including a regular procedure of introducing standards, duplicates and blanks into the sample submittals. In addition a subset of sample pulps should be submitted to a second assay lab. All results should be documented, including analysis of results, and included as part of the project database.     


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

18.5 Costs

The estimated budget for this work is estimated as follows:

Phase 1 3D inversion modelling of ZTEM data and interpretation by a geophysicist/geologist $35,000.

Phase 2 is budgeting should be capped as the amount of funds required for Quaterra to complete its exploration requirements according to their agreement with Chuchuna Minerals Company ($5 million total to be spent prior to April 17, 2023). It is estimated that approximately half of this funding requirement has been met.  With three field seasons remaining between the effective date of this report and the agreement deadline, there is sufficient time to carefully prioritize geophysical targets for subsequent drill testing.

If the decision is made to drill-test priority targets and the work fails to result in finding the QSP halo associated with a porphyry copper system and/or the potassic zone with high copper mineralization, then further work is not recommended.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

19 References

Anderson, E.D., Hitzman, M.W., Monecke, T., Bedrosian, P.A., Shah, A.K., and Kelley, K.D., 2013, Geological analysis of aeromagnetic data from southwestern Alaska: Implications for exploration in the area of the Pebble porphyry Cu-Au-Mo deposit. Economic Geology, Volume 108, p. 421-436.

Bouley, B.A., St. George, P., and Wetherbee, P.K., 1995, Geology and discovery at Pebble Copper, a copper-gold porphyry system in southwest Alaska: in Schroeter, T.G., ed., Porphyry Deposits of the Northwestern Cordillera of North America, CIM Special Volume 46, p. 422-435.

Bundtzen, T.K., and Miller, M.L., 1997, Precious metals associated with Late Cretaceous-early Tertiary igneous rocks of southwestern Alaska: in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska: Economic Geology Monograph 9, p. 242-286.

Decker, J., Bergman, S.C., Blodgett, R.B., Box, S.E., Bundtzen, T.L., Clough, J.G., Coonrad, W.L., Gilbert, W.G., Miller, M.L., Murphy, J.M., Robinson, M.S., and Wallace, W.K., 1994, Geology of southwestern Alaska: in Plafker, G., and Berg, H.C., eds., The Geology of Alaska. Geological Society of America, The Geology of North America, v. G-1., p. 285-310.

Deininger, J.W., 2018, Petrographic descriptions for Alaska Earth Sciences Project CHU-17-00X. Internal report 30 p.

Detterman, R.L., and Reed, B.L, 1973. Surficial Deposits of the Iliamna Quadrange, Alaska, U.S. Geological Survey Bulletin 1368-A, 64 p.

Detterman, R.L., and Reed, B.L., 1980, Stratigraphy, structure, and economic geology of the Iliamna quadrangle, Alaska: U.S. Geological Survey Bulletin 1368-B, 86 p.

Fey, D.L., Granitto, M, Giles, S.A., Smith, S.M., Eppinger, R.G., Kelly, K.D., 2008, Geochemical data for samples collected in 2007 near the concealed Pebble porphyry Cu-Au-Mo deposit, southwest Alaska. USGS OFR 2008-1132.

Gaunt, J.D., Lang, J., Titley, E., Lu, T., and Hodgson, S., 2018, 2018 Technical report on the Pebble Project, SW Alaska. Available on www.sedar.com, 191 p.

Geotech case study, 2015. ZTEM Tipper AFMAG Results over the Pebble Porphyry deposit http://geotech.ca/wp-content/uploads/2015/04/015-ZTEM_Porphyry_Pebble_Alaska.pdf

Gierymski, C., 2019. 2019 Groundhog Project exploration summary, Iliamna Recording District, SW Alaska. Internal Quaterra Resources company report, 26p.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Goldfarb, R.J., Anderson, E.D., and Hart, C.J.R 2013, Regional tectonic framework of the Pebble deposit: Economic Geology 108:405-419.

Haeussler, P.J., and Saltus, R.W., 2005, 26 km of offset on the Lake Clark fault since late Eocene time: U.S. Geological Survey, Professional Paper 1709A, 4 p.

Haeussler, P.J., and Saltus, R.W., 2011, Location and Extent of Tertiary Structures in Cook Inlet Basin, Alaska, and Mantle Dynamics that Focus deformation and Subsidence, in Dumoulin, J.A., and Galloway, J.P., eds., Studies by the U.S. Geological Survey in Alaska 2008-2009: U.S. Geological Survey Professional Paper 1776-D, 26 p.

Hamilton, T., and Klieforth, R.F., 2010, Surficial geologic map of parts of the D-6 and D-7 quadrangles, Pebble project area, southwestern Alaska: Alaska Division of Geological & Geophysical Surveys, Report of Investigation 2009-4, 19 p.

Hampton, B.A., Ridgway, K.D., and Gehrels, G.E., 2010, A detrital record of Mesozoic island arc accretion and exhumation in the North American Cordillera: U-Pb geochronology of the Kahiltna basin, southern Alaska: Tectonics, v. 29, doi.org/10.1029/2009TC002544

Inman, J., 2019, Groundhog, AK Exploration - Geophysics Report. Internal Quaterra Resources company report. 15 p.

Kalbas, J.L., Ridgeway, K.D., and Gehrels, G.E., 2007, Stratigraphy, depositional systems, and provenance of the Lower Cretaceous Kahiltna assemblage, western Alaska Range: Basin development in response to oblique collision: in Ridgeway, K.D., Trop, J.M., Glen, J.M.G, Evolution of Southern Alaska: Geological Society of America Special Paper 431, p. 307-344.

Kelley, K.D., Eppinger, R.G., Lang, J., Smith, S.M., and Fey, D.L., 2011, Porphyry Cu indicator minerals in till as an exploration tool: example from the giant Pebble porphyry Cu-Au-Mo deposit, Alaska. Geochemistry: Exploration, Environment, Analysis, v. 11, p. 321-334.

Koehler, R.D., and Reger, R.D., 2011, Reconnaissance evaluation of the Lake Clark fault, Tyonek area, Alaska. State of Alaska Department of Natural Resources, Division of Geological & Geophysical Surveys, Preliminary Interpretive Report 2011-1, 10 p.

Koehler, R.D., 2010, Technical review of a trench across a potential fault scarp feature east of lower Talarik Creek, Lake Iliamna area, southwestern Alaska. State of Alaska Department of Natural Resources, Alaska Division of Geological & Geophysical Surveys, Miscellaneous Publication 139, 12 p.

Lang, J.R., Gregory, M.J., Rebagliati, C.M., Payne, J.G., Oliver, J.L., and Roberts, K., 2013, Geology and magmatic-hydrothermal evolution of the giant Pebble porphyry copper-gold-molybdenum deposit, southwest Alaska, USA. Economic Geology, Volume 108, p 437-462.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Leberge, J. 2011, Report on 2011 exploration activities on the Groundhog project, Bristol Bay Region, Southwestern Alaska, United States. KEC internal company report 34 p.

McClelland, W.C., Gehrels, G.E., and Saleeby, J.B., 1992, Upper Jurassic-Lower Cretaceous basinal strata along the Cordilleran Margin: Implications for the accretionary history of the Alexander-Wrangellia-Peninsular Terrane: Tectonics, v. 11, p. 823-835.

Pavlis, T.L., Sisson, V.B., Foster, H., Nokleberg, W.J., and Plafker, G., 1993, Constraints on crustal extension in the western Yukon-Tanana terrane, central Alaska: Tectonics, v. 12, p. 103-122.

Plafker, G., and Berg, H.C., 1994, Overview of the geology and tectonic evolution of Alaska: in Plafker, G., and Berg, H.C., eds., The Geology of Alaska: Geological Society of America, The Geology of North America, v. G-1, p. 989-1021.

Shah, A., Bedrosian, P., Anderson, E., Kelley, K., and Lang, J., 2009, Geophysical data used to characterize the regional setting of the Pebble porphyry deposit in southwest Alaska: Geological Society of America Annual Meeting, Program with Abstracts, v. 41, p. 493.

Sinclair, W.D., 2007, Porphyry Deposits: in Mineral deposits of Canada: a synthesis of major deposit-types, district metallogeny, the evolution of geological provinces, and exploration methods; by Goodfellow, W D (ed.); Geological Association of Canada, Mineral Deposits Division, Special Publication no. 5, 2007 p. 223-243.

Wallace, W.E., Hanks, C.L., and Rogers, J.F., 1989, The southern Kahiltna terrane: Implications for the tectonic evolution of southwestern Alaska: Geological Society of America Bulletin, v. 101, p. 1389- 1407.

Young, L.E., St. George, P., and Bouley, B.A., 1997, Porphyry copper deposits in relation to the magmatic history and palinspastic restoration of Alaska: in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska: Society of Economic Geologists Monograph 9, p. 306-333.


Quaterra Resources Inc.   May
Technical Report on the Groundhog Project   2020

Date, Signature and Certificate of Qualifications Pages

Effective Date: April 28, 2020

I, Nicholas Van Wyck Ph.D., 3705 Arctic Blvd #1150, Anchorage, AK 99503 do hereby certify that:

1. I have graduated from the following Universities with degrees as follows:

a. Tufts University, B.S. Geology 1985

b. University of Wisconsin - Madison, M.S. Geology 1989

c. University of Wisconsin - Madison, Ph. D. Geology 1994

2. I am a member in good standing of the following professional associations:

a. American Institute of Professional Geologists

3. I have worked as a geologist for 34 years since my graduation from Tufts University.

4. I am a Certified Professional Geologist (AIPG #10553).

5. I have read the definition of "Qualified Person" set out in National Instrument 43-101 and certify that by reason of my education, affiliation with professional associations and past relevant work experience, I fulfill the requirements to be a "Qualified Person" for the purposes of NI 43-101.

6. I am the author of this report responsible for the preparation of the report titled "NI 43-101 technical report on the Groundhog Project, Bristol Bay Region, southwestern Alaska 60°04'N / 155°08' W" and dated April 28, 2020 (the "Technical Report") relating to the Groundhog property.

7. I visited the Groundhog property September 11h to 12th, 2019.

8. I have not had prior involvement with the property that is the subject of the Technical Report.

9. As at the effective date of the Technical Report, to the best of my knowledge, information, and belief, the Technical Report contains all scientific and technical information that is required to be disclosed to make the technical report not misleading.

10. I am independent of the issuer applying all of the tests in section 1.5 of National Instrument 43-101.

11. I have read National Instrument 43-101 and Form 43-101F1, and the Technical Report has been prepared in compliance with that instrument and form.

12. I consent to the filing of the Technical Report with any stock exchange and other regulatory authority and any publication by them for regulatory purposes, including electronic publication in the public company files on their websites accessible by the public, or the Technical Report.

Signed and dated this April 28, 2020 at Anchorage, Alaska.

____________________________

Signature of Qualified Person

Nicholas Van Wyck Ph.D., CPG #10553

Effective Date: April 28, 2020




Quaterra Resources Inc.: Exhibit 99.2 - Filed by newsfilecorp.com

Nicholas Van Wyck

3705 Arctic Blvd #1150

Anchorage AK 99503

Telephone: (907) 677 2136

Email: nvw@sisyphus-consulting.com

CONSENT of QUALIFIED PERSON

TO:  All Applicable Securities Regulatory Authorities

I, Nicholas Van Wyck, consent to the public filing of the technical report titled "NI 43-101 technical report on the Groundhog Project, Bristol Bay Region, southwestern Alaska

60 ͦ 04'N / 155 ͦ 08' W" and dated May 13, 2020 (the "Technical Report") by Quaterra Resources Inc. 

I confirm that I have read the news release of Quaterra Resources Inc. dated May 26, 2020 and that such news release fairly and accurately represents the information in the Technical Report that supports the disclosure, and I consent to the use and public filing of the extracts or summaries of the Technical Report contained therein.

Dated this 26 day of May, 2020.

 

"Nicholas Van Wyck" (signed)

_____________________________

Nicholas Van Wyck, Ph.D.,

CPG #10553