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  <xsd:element name="LivengoodPropertyMember" id="thm_LivengoodPropertyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AlaskaMentalHealthTrustMineralRightsMember" id="thm_AlaskaMentalHealthTrustMineralRightsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FederalUnpatentedLodeMiningClaimsMember" id="thm_FederalUnpatentedLodeMiningClaimsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PatentedLodeClaimsMember" id="thm_PatentedLodeClaimsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UnpatentedFederalLodeMiningAndFederalUnpatentedPlacerClaimsMember" id="thm_UnpatentedFederalLodeMiningAndFederalUnpatentedPlacerClaimsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdvanceRoyaltiesMember" id="thm_AdvanceRoyaltiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ProductionRoyaltyMember" id="thm_ProductionRoyaltyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MiningPropertiesLeaseOperatingExpense" id="thm_MiningPropertiesLeaseOperatingExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="RoyaltyPercentage" id="thm_RoyaltyPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="PrescribedPeriodFromDecisionOnPositiveProductionForPaymentOfFirstHalfAmountPayableToLessor" id="thm_PrescribedPeriodFromDecisionOnPositiveProductionForPaymentOfFirstHalfAmountPayableToLessor" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PortionOfAmountPayableToLessorOnPositiveProductionDecisionWithinPrescribedPeriodOfDecision" id="thm_PortionOfAmountPayableToLessorOnPositiveProductionDecisionWithinPrescribedPeriodOfDecision" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="AmountPayableToLessorOnPositiveProductionDecision" id="thm_AmountPayableToLessorOnPositiveProductionDecision" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="NetSmelterReturnBaseForPaymentsToAcquireRoyaltyInterestsInMiningProperties" id="thm_NetSmelterReturnBaseForPaymentsToAcquireRoyaltyInterestsInMiningProperties" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="BalancePortionOfPaymentsToAcquireRoyaltyInterestsInMiningPropertiesPayableByWayOfNetSmelterReturn" id="thm_BalancePortionOfPaymentsToAcquireRoyaltyInterestsInMiningPropertiesPayableByWayOfNetSmelterReturn" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="PortionOfRoyaltyToBePurchasedByEntity" id="thm_PortionOfRoyaltyToBePurchasedByEntity" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="AccruedGeneralCorporateCostCurrent" id="thm_AccruedGeneralCorporateCostCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="AccruedProjectCostCurrent" id="thm_AccruedProjectCostCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceThreeMember" id="thm_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceFiveMember" id="thm_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceSixMember" id="thm_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceSixMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceSevenMember" id="thm_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceSevenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceEightMember" id="thm_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceEightMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceFourMember" id="thm_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DeferredShareUnitIncentivePlanMember" id="thm_DeferredShareUnitIncentivePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockholdersEquityTable" id="thm_StockholdersEquityTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NonpaulsonDirectorsMember" id="thm_NonpaulsonDirectorsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="Plan2006Member" id="thm_Plan2006Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StockholdersEquityLineItems" id="thm_StockholdersEquityLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesAuthorized" id="thm_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesAuthorized" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAuthorizedPercentage" id="thm_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAuthorizedPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="MineralPropertyLeasesObligationMember" id="thm_MineralPropertyLeasesObligationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MiningClaimGovernmentFeesObligationMember" id="thm_MiningClaimGovernmentFeesObligationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MineralExtractionProcessingCostsAbstract" id="thm_MineralExtractionProcessingCostsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentTowardsEquityInstrumentsOtherThanOptionsGrantsInPeriodAggregateWeightedAverageGrantDateFairValue" id="thm_ShareBasedCompensationArrangementByShareBasedPaymentTowardsEquityInstrumentsOtherThanOptionsGrantsInPeriodAggregateWeightedAverageGrantDateFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="DeferredShareUnitsMember" id="thm_DeferredShareUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LivengoodGoldProjectMember" id="thm_LivengoodGoldProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceTwoMember" id="thm_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentTowardsEquityInstrumentsOtherThanOptionsGrantsInPeriodAggregateWeightedAverageGrantDateFairValuePerDirector" id="thm_ShareBasedCompensationArrangementByShareBasedPaymentTowardsEquityInstrumentsOtherThanOptionsGrantsInPeriodAggregateWeightedAverageGrantDateFairValuePerDirector" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AircraftServicesCosts" id="thm_AircraftServicesCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PercentageOfLeaseholdInterest" id="thm_PercentageOfLeaseholdInterest" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PercentageOfMiningClaimsAcquiredSubjectToLease" id="thm_PercentageOfMiningClaimsAcquiredSubjectToLease" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PaulsonCo.Inc.Member" id="thm_PaulsonCo.Inc.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationDeferredShareUnitPlan" id="thm_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationDeferredShareUnitPlan" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ProductionRoyaltyPayableToLessor" id="thm_ProductionRoyaltyPayableToLessor" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceOneMember" id="thm_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CarryforwardExpirationYearAxis" id="thm_CarryforwardExpirationYearAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CarryforwardExpirationYearDomain" id="thm_CarryforwardExpirationYearDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DeferredStockOrUnitExpense" id="thm_DeferredStockOrUnitExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ShareIssuanceCostsDuringPeriodValue" id="thm_ShareIssuanceCostsDuringPeriodValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="RoyaltyInterestsInMiningPropertiesPercentagePayableUponExercise" id="thm_RoyaltyInterestsInMiningPropertiesPercentagePayableUponExercise" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RoyaltyInterestsInMiningPropertiesPercentagePayableInEqualInstallments" id="thm_RoyaltyInterestsInMiningPropertiesPercentagePayableInEqualInstallments" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RoyaltyInterestsInMiningPropertiesPercentagePayableByWayOfNetSmelterReturn" id="thm_RoyaltyInterestsInMiningPropertiesPercentagePayableByWayOfNetSmelterReturn" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="SingleReportableSegmentMember" id="thm_SingleReportableSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PublicOfferingMember" id="thm_PublicOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MineralPropertiesRollforwardTableTextBlock" id="thm_MineralPropertiesRollforwardTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MineralPropertiesAcquisitionCost" id="thm_MineralPropertiesAcquisitionCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MineralPropertiesOperatingExpenses" id="thm_MineralPropertiesOperatingExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="StockIssuanceCostsIncludedInAccountsPayable" id="thm_StockIssuanceCostsIncludedInAccountsPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DrillingAndSitePreparationCosts" id="thm_DrillingAndSitePreparationCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MembersOfBoardMember" id="thm_MembersOfBoardMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesGrantedInPeriodPerDirector" id="thm_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesGrantedInPeriodPerDirector" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="LeadIndependentDirectorMember" id="thm_LeadIndependentDirectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NonpaulsonDirectorAndLeadIndependentDirectorMember" id="thm_NonpaulsonDirectorAndLeadIndependentDirectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PatentedLodeClaimsRemainingThirdPartyMember" id="thm_PatentedLodeClaimsRemainingThirdPartyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InducementPlanMember" id="thm_InducementPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
