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  <xsd:element id="clf_DepreciationDepletionandAmortizationexcludingDepreciationAmortizationandDepletionexpenseforDiscontinuedOperations" name="DepreciationDepletionandAmortizationexcludingDepreciationAmortizationandDepletionexpenseforDiscontinuedOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="clf_DirectPaymentsMember" name="DirectPaymentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_DirectorsPlanMember" name="DirectorsPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_DirectorsRetainerAndVoluntarySharesMember" name="DirectorsRetainerAndVoluntarySharesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_DisclosurePensionsAndOtherPostretirementBenefitsComponentsOfNetPeriodicBenefitCostAbstract" name="DisclosurePensionsAndOtherPostretirementBenefitsComponentsOfNetPeriodicBenefitCostAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="clf_DiscountRateDomain" name="DiscountRateDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="clf_EarlyTerminationFeesforPensionBenefits" name="EarlyTerminationFeesforPensionBenefits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="clf_Effectofinventoryreduction" name="Effectofinventoryreduction" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_EightHundredMillionSixPointTwoFivePercentSeniorNotesDueTwoThousandFortyMember" name="EightHundredMillionSixPointTwoFivePercentSeniorNotesDueTwoThousandFortyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_EmpireMember" name="EmpireMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_EmployeePlansMember" name="EmployeePlansMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_EmployeeStockAwardsOutstandingTableTextBlock" name="EmployeeStockAwardsOutstandingTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_EnvironmentalLossContingencyAndMineClosureObligationDisclosureTextBlock" name="EnvironmentalLossContingencyAndMineClosureObligationDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityCurrent" name="EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="clf_EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityCurrentAndNoncurrent" name="EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityCurrentAndNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="clf_EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityNoncurrent" name="EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
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  <xsd:element id="clf_EstimatedTaxableIncometoFullyUtilizeDeferredTaxAssets" name="EstimatedTaxableIncometoFullyUtilizeDeferredTaxAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="clf_EstimatedUsefulLivesOfIntangibleAssetsSubjectToPeriodicAmortizationOnStraightLineBasisTableTextBlock" name="EstimatedUsefulLivesOfIntangibleAssetsSubjectToPeriodicAmortizationOnStraightLineBasisTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
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  <xsd:element id="clf_FairValueAdjustmenttoInterestRateHedge" name="FairValueAdjustmenttoInterestRateHedge" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="clf_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationAbstract" name="FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="clf_FreightAndVenturePartnersCostReimbursementsMember" name="FreightAndVenturePartnersCostReimbursementsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_FreightRevenueMember" name="FreightRevenueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="clf_Gainonextinguishmentofdebtcashflows" name="Gainonextinguishmentofdebtcashflows" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="clf_GrossCompanyBenefitsMember" name="GrossCompanyBenefitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="clf_HourlyEmployeesMember" name="HourlyEmployeesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="clf_IncentiveCompensationAndOtherBenefitPlansForEmployeesAndDirectorsTableTextBlock" name="IncentiveCompensationAndOtherBenefitPlansForEmployeesAndDirectorsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
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  <xsd:element id="clf_IncomeTaxesOtherThanContinuingOperationsDisclosureTextBlockTableTextBlock" name="IncomeTaxesOtherThanContinuingOperationsDisclosureTextBlockTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_IncreaseDecreaseinCashandCashEquivalentsIncludingCashClassifiedWithinCurrentAssetsofDiscontinuedOperations" name="IncreaseDecreaseinCashandCashEquivalentsIncludingCashClassifiedWithinCurrentAssetsofDiscontinuedOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element id="clf_IncreaseinOwnershipEquity" name="IncreaseinOwnershipEquity" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_IncreaseinProjectedBenefitObligationduetonewmortalitytables" name="IncreaseinProjectedBenefitObligationduetonewmortalitytables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element id="clf_Intercompanyinvestments" name="Intercompanyinvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="clf_InternationalMember" name="InternationalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="clf_IronHourlyMember" name="IronHourlyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_IronOreRevenueMember" name="IronOreRevenueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_January122015Member" name="January122015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_LIBORRateBasedonaOnemonthinterestperiodplus1percent" name="LIBORRateBasedonaOnemonthinterestperiodplus1percent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_LaborAgreementContractTerm" name="LaborAgreementContractTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_LoanstoandaccountsreceivablesfromtheCanadianEntities" name="LoanstoandaccountsreceivablesfromtheCanadianEntities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
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  <xsd:element abstract="true" id="clf_LongTermDebtNoncurrentFairValueAbstract" name="LongTermDebtNoncurrentFairValueAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_Longtermintercompanynotes" name="Longtermintercompanynotes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="clf_Longtermintercompanynotespayable" name="Longtermintercompanynotespayable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
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  <xsd:element abstract="true" id="clf_ManagementsEstimateOfSixtyTwoPercentMember" name="ManagementsEstimateOfSixtyTwoPercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_MedicarePartDSubsidyMember" name="MedicarePartDSubsidyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_MetallicsMember" name="MetallicsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="clf_MineLocationAxis" name="MineLocationAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_MineLocationDomain" name="MineLocationDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_MiningEmployeesMember" name="MiningEmployeesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_MiningandPelletizingMember" name="MiningandPelletizingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_NameofOperationAxis" name="NameofOperationAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_NameofOperationDomain" name="NameofOperationDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_NetCompanyPaymentsMember" name="NetCompanyPaymentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_NoncontrollingInterestPurchaseInstallmentAmount" name="NoncontrollingInterestPurchaseInstallmentAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="clf_NoncontrollingInterestPurchaseNumberOfInstallmentPayments" name="NoncontrollingInterestPurchaseNumberOfInstallmentPayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_NoncontrollingInterestsPolicyTextBlock" name="NoncontrollingInterestsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_NorthAmericanCoalMember" name="NorthAmericanCoalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_NorthshoreMember" name="NorthshoreMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_NoteRedemptionPricePercentOfPrincipalAmountToBeRedeemed" name="NoteRedemptionPricePercentOfPrincipalAmountToBeRedeemed" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="clf_NumberOfCustomers" name="NumberOfCustomers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_NumberOfMines" name="NumberOfMines" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_ObligationDomain" name="ObligationDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_OneBillionSeventyFiveMillionFivePointSevenFiveTwoThousandTwentyFiveSeniorNoteMember" name="OneBillionSeventyFiveMillionFivePointSevenFiveTwoThousandTwentyFiveSeniorNoteMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_OreMiningDomain" name="OreMiningDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_OreMiningMember" name="OreMiningMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_OtherBenefitsAxis" name="OtherBenefitsAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_OtherBenefitsDomain" name="OtherBenefitsDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_OtherComprehensiveIncomeLossForeignCurrencyTranslationDissolutionofEntity" name="OtherComprehensiveIncomeLossForeignCurrencyTranslationDissolutionofEntity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="clf_OtherComprehensiveIncomeLossOtherTax" name="OtherComprehensiveIncomeLossOtherTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_OtherCountriesMember" name="OtherCountriesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_OtherSegmentMember" name="OtherSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_PaymentsToAcquirePropertyPlantAndEquipmentNet" name="PaymentsToAcquirePropertyPlantAndEquipmentNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="clf_PercentageOfRelatedPartyRevenue" name="PercentageOfRelatedPartyRevenue" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_PostretirementBenefitLiabilityMember" name="PostretirementBenefitLiabilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_PostretirementBenefitsMedicalCoverageAnnualLimit" name="PostretirementBenefitsMedicalCoverageAnnualLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="clf_PreTaxExitCostsLineItems" name="PreTaxExitCostsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_PreTaxExitCostsTable" name="PreTaxExitCostsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_PreTaxExitCostsTableTextBlock" name="PreTaxExitCostsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_PreferredSharesIssuedAndOutstandingShares" name="PreferredSharesIssuedAndOutstandingShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="clf_PriorToAge65Member" name="PriorToAge65Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_PrioryearadjustmentincurrentyearMember" name="PrioryearadjustmentincurrentyearMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_ProductSegmentAxis" name="ProductSegmentAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_ProductSegmentDomain" name="ProductSegmentDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_PropertyPlantandEquipmentAdditionsIncludingDiscontinuedOperations" name="PropertyPlantandEquipmentAdditionsIncludingDiscontinuedOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="clf_PropertyPlantandEquipmentCashAdditions" name="PropertyPlantandEquipmentCashAdditions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_ProvisionalPricingArrangementsMember" name="ProvisionalPricingArrangementsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_PurchaseofNoncontrollingInterest" name="PurchaseofNoncontrollingInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="clf_QuantityOfFinishedGoods" name="QuantityOfFinishedGoods" nillable="true" substitutionGroup="xbrli:item" type="num:massItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="clf_RealizedGainLossOnDerivativesMember" name="RealizedGainLossOnDerivativesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_RedemptionPrice" name="RedemptionPrice" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="clf_RedemptionPriceof35percentorlessofOutstanding" name="RedemptionPriceof35percentorlessofOutstanding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_RedemptionRequestNoticePeriod" name="RedemptionRequestNoticePeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_RegionReportingInformationByRegionAxis" name="RegionReportingInformationByRegionAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_ReimbursementRevenueByTypeAxis" name="ReimbursementRevenueByTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_ReimbursementRevenueByTypeDomain" name="ReimbursementRevenueByTypeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_ReimbursementsRevenueDisclosureTableTextBlock" name="ReimbursementsRevenueDisclosureTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_RepairsAndMaintenancePolicyTextBlock" name="RepairsAndMaintenancePolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_Repaymentsofequipmentloans" name="Repaymentsofequipmentloans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_RepealofAMTMember" name="RepealofAMTMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_ReportingRegionDomain" name="ReportingRegionDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_Repurchasepriceiftriggeringeventoccurs" name="Repurchasepriceiftriggeringeventoccurs" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_ReserveForInvestmentCommitments" name="ReserveForInvestmentCommitments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="clf_ReserveforunassertedclaimsinCCAA" name="ReserveforunassertedclaimsinCCAA" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="clf_RestrictedEquityGrantSharesMember" name="RestrictedEquityGrantSharesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_RetirementAndDefinedCompensationPlansDisclosuresTableTextBlock" name="RetirementAndDefinedCompensationPlansDisclosuresTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_RevenueTypeAxis" name="RevenueTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_RevenueTypeDomain" name="RevenueTypeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_SERPDomain" name="SERPDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_SalariedEmployeesMember" name="SalariedEmployeesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_SalariedMember" name="SalariedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_SalaryMember" name="SalaryMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_ScheduleIIValuationandQualifyingAccountsAbstract" name="ScheduleIIValuationandQualifyingAccountsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_ScheduleOfAnnualContributionsTableTextBlock" name="ScheduleOfAnnualContributionsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_ScheduleOfConsolidationSubsidiariesOrOtherInvestmentsConsolidatedEntitiesTableTextBlock" name="ScheduleOfConsolidationSubsidiariesOrOtherInvestmentsConsolidatedEntitiesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_ScheduleofDerivativesinFairValueHedgingRelationshipsStatementsofFinancialPerformanceandFinancialPositionLocationTable" name="ScheduleofDerivativesinFairValueHedgingRelationshipsStatementsofFinancialPerformanceandFinancialPositionLocationTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_ScheduleofDisposalGroupsIncludingDiscontinuedOperationsAssetsandLiabilitiesTableTextBlock" name="ScheduleofDisposalGroupsIncludingDiscontinuedOperationsAssetsandLiabilitiesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_ScheduleofDisposalGroupsincludingDiscontinuedOperationsIncomeStatementTableTextBlock" name="ScheduleofDisposalGroupsincludingDiscontinuedOperationsIncomeStatementTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_ScheduleofEnvironmentalLossContingenciesandAssetRetirementObligationsTableTextBlock" name="ScheduleofEnvironmentalLossContingenciesandAssetRetirementObligationsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_ServiceCostDomain" name="ServiceCostDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_SevenHundredMillionFourPointEightSevenFiveTwoThousandTwentyoneSeniorNoteMember" name="SevenHundredMillionFourPointEightSevenFiveTwoThousandTwentyoneSeniorNoteMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantDatePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantDatePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_ShareBasedGoodsAndNonemployeeServicesTransactionValuationMethodPayoutRate" name="ShareBasedGoodsAndNonemployeeServicesTransactionValuationMethodPayoutRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="clf_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsEstimatedForfeitures" name="SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsEstimatedForfeitures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_Sharesissuedfordebtexchange" name="Sharesissuedfordebtexchange" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_ShorttermintercompanyloanMember" name="ShorttermintercompanyloanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_Shorttermloanreceivable" name="Shorttermloanreceivable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="clf_StockIncentivePlansDisclosureTableTextBlock" name="StockIncentivePlansDisclosureTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_StockIssuedDuringPeriodSharesDirectorStockAward" name="StockIssuedDuringPeriodSharesDirectorStockAward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_StockRepurchaseProgramAveragePrice" name="StockRepurchaseProgramAveragePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_StructuredCreditMember" name="StructuredCreditMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_SublimitforAustralianSwinglineLoans" name="SublimitforAustralianSwinglineLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="clf_SublimitforIssuanceofLettersofCreditforAustralianTranche" name="SublimitforIssuanceofLettersofCreditforAustralianTranche" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="clf_SublimitforIssuersofLettersofCreditforU.S.Tranche" name="SublimitforIssuersofLettersofCreditforU.S.Tranche" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="clf_SublimitforU.S.SwinglineLoans" name="SublimitforU.S.SwinglineLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="clf_SummaryofBalanceSheetPresentationTableTextBlock" name="SummaryofBalanceSheetPresentationTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_SupplementalExecutiveRetirementPlanSERPMember" name="SupplementalExecutiveRetirementPlanSERPMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_SupplementalGuarantorInformationTextBlock" name="SupplementalGuarantorInformationTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_TLockAmortizationMember" name="TLockAmortizationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_TakeOrPayContractsMember" name="TakeOrPayContractsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_TaxCutsAndJobsActChangeInTaxRateDeferredTaxAssetIncomeTaxExpense" name="TaxCutsAndJobsActChangeInTaxRateDeferredTaxAssetIncomeTaxExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_TaxLawChangeMember" name="TaxLawChangeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_Taxlawchangeremeasurementamount" name="Taxlawchangeremeasurementamount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="clf_Taxonderivativeinstrumentsgainlossreclassifiedfromaccumulatedociintoearnings" name="Taxonderivativeinstrumentsgainlossreclassifiedfromaccumulatedociintoearnings" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_TildenMember" name="TildenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_TimePeriodDuringWhichSeniorNotesMayBeRedeemedAtCompanysOptionNumberOfDaysFromWhenPriorNoticeSentToHolders" name="TimePeriodDuringWhichSeniorNotesMayBeRedeemedAtCompanysOptionNumberOfDaysFromWhenPriorNoticeSentToHolders" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_TotalAsset" name="TotalAsset" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="clf_TotalLiability" name="TotalLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="clf_TotalOtherAssets" name="TotalOtherAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="clf_TradingDayWindowDeterminingNumberOfCommonSharesIssuableOnConversion" name="TradingDayWindowDeterminingNumberOfCommonSharesIssuableOnConversion" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_TransactionGainsandLossesResultingfromRemeasurementMember" name="TransactionGainsandLossesResultingfromRemeasurementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_TriggeringEventsAxis" name="TriggeringEventsAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_TriggeringEventsDomain" name="TriggeringEventsDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_TrustforBenefitofEmployeesAxis" name="TrustforBenefitofEmployeesAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_TrustforBenefitofEmployeesDomain" name="TrustforBenefitofEmployeesDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_TwoThousandTwelveEquityPlanMember" name="TwoThousandTwelveEquityPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_TwohundredEighteenPointFiveMillionEightPointZeroTwentyTwentyOnePointFiveLienNotesMember" name="TwohundredEighteenPointFiveMillionEightPointZeroTwentyTwentyOnePointFiveLienNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_TypeofCompensationAxis" name="TypeofCompensationAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_TypeofCompensationDomain" name="TypeofCompensationDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_U.S.Tranche" name="U.S.Tranche" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="clf_USLargeCapMember" name="USLargeCapMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_USSmallMidCapMember" name="USSmallMidCapMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_USSteelCanadaMember" name="USSteelCanadaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_UndistributedEarningsLossesRelatedToNoncontrollingInterests" name="UndistributedEarningsLossesRelatedToNoncontrollingInterests" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_UnitedTaconiteMember" name="UnitedTaconiteMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_UnrealizedGainLossOnDerivativesMember" name="UnrealizedGainLossOnDerivativesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_UpdateAssumptionperCapitaCostMember" name="UpdateAssumptionperCapitaCostMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_ValuationallowancereversalMember" name="ValuationallowancereversalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_ValueOfVebaTrustAssetsAsPercentageOfFundingObligation" name="ValueOfVebaTrustAssetsAsPercentageOfFundingObligation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="clf_VebaTrustMember" name="VebaTrustMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="clf_WabushScullyMineSaleMember" name="WabushScullyMineSaleMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_WeightedAverageAssumptionsUsedToDetermineNetBenefitCostsTableTextBlock" name="WeightedAverageAssumptionsUsedToDetermineNetBenefitCostsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="clf_WorthlessStockDeductionAmount" name="WorthlessStockDeductionAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="clf_WorthlessStockDeductionPercent" name="WorthlessStockDeductionPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
</xsd:schema>


