﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2023v5.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-10-17T12:52:55-05:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>910189318</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>MOSS ADAMS LLP</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>6565 AMERICAS PARKWAY NE STE 600</AddressLine1Txt>
        <CityNm>ALBUQUERQUE</CityNm>
        <StateAbbreviationCd>NM</StateAbbreviationCd>
        <ZIPCd>87110</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>850283465</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>CASWELL SILVER FOUNDATION</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>CASW</BusinessNameControlTxt>
      <PhoneNum>5052774204</PhoneNum>
      <USAddress>
        <AddressLine1Txt>EARTH PLANETARY SCI DEP MSC 03-204</AddressLine1Txt>
        <CityNm>ALBUQUERQUE</CityNm>
        <StateAbbreviationCd>NM</StateAbbreviationCd>
        <ZIPCd>871310001</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>PETER CASTIGLIA</PersonNm>
      <PersonTitleTxt>PRESIDENT</PersonTitleTxt>
      <PhoneNum>5052774204</PhoneNum>
      <SignatureDt>2024-10-11</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>1</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>STEVEN TALBOT</PreparerPersonNm>
      <PTIN>P01695427</PTIN>
      <PhoneNum>5058787200</PhoneNum>
      <PreparationDt>2024-10-11</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-10-15 13:58:12Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="7">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <AddressChangeInd>X</AddressChangeInd>
      <PrincipalOfficerNm>PETER CASTIGLIA</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>C/O INTERA INC 2440 LOUISIANA BLVD</AddressLine1Txt>
        <AddressLine2Txt>NE STE 700</AddressLine2Txt>
        <CityNm>ALBUQUERQUE</CityNm>
        <StateAbbreviationCd>NM</StateAbbreviationCd>
        <ZIPCd>87110</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>565053</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>N/A</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1980</FormationYr>
      <LegalDomicileStateCd>CO</LegalDomicileStateCd>
      <ActivityOrMissionDesc>PROVIDE SCHOLARSHIPS, FELLOWSHIPS, AND OTHER MISCELLANEOUS SUPPORT TO THE UNIVERSITY OF NEW MEXICO DEPARTMENT OF EARTH AND PLANETARY SCIENCES.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>7</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>5</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <TotalVolunteersCnt>5</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>0</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>0</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>0</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>0</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>0</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>100782</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>199096</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>0</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>0</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>100782</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>199096</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>89083</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>84116</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>0</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>0</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>23741</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>25737</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>112824</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>109853</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>-12042</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>89243</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>2567368</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>2910493</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>0</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>0</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>2567368</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>2910493</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>PROVIDE SCHOLARSHIPS, FELLOWSHIPS, AND OTHER MISCELLANEOUS SUPPORT TO THE UNIVERSITY OF NEW MEXICO DEPARTMENT OF EARTH AND PLANETARY SCIENCES.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <ExpenseAmt>84116</ExpenseAmt>
      <GrantAmt>84116</GrantAmt>
      <Desc>FELLOWSHIPS TO THE UNIVERSITY OF NEW MEXICO DEPARTMENT OF EARTH AND PLANETARY SCIENCES</Desc>
      <TotalProgramServiceExpensesAmt>84116</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc1039100001">1</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd>0</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc1040000001">0</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc1040000001">0</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc1040000001">0</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>0</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc1040000001">0</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc1040000001">1</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc1040000001">0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc1040000001">0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc1040000001">0</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc1040000001">0</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <ForeignActivitiesInd>0</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>0</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>0</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>0</FundraisingActivitiesInd>
      <GamingActivitiesInd>0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd referenceDocumentId="RetDoc1041900001">1</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd referenceDocumentId="RetDoc1041900001">0</GrantsToIndividualsInd>
      <ScheduleJRequiredInd referenceDocumentId="RetDoc1042400001">1</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>0</PYExcessBenefitTransInd>
      <LoanOutstandingInd>0</LoanOutstandingInd>
      <GrantToRelatedPersonInd>0</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>0</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>0</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>0</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd referenceDocumentId="RetDoc1043400001">0</DisregardedEntityInd>
      <RelatedEntityInd referenceDocumentId="RetDoc1043400001">1</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd referenceDocumentId="RetDoc1043400001">0</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd referenceDocumentId="RetDoc1043400001">0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>0</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <EmployeeCnt>0</EmployeeCnt>
      <UnrelatedBusIncmOverLimitInd>0</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>0</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>0</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>0</Form8282PropertyDisposedOfInd>
      <RcvFndsToPayPrsnlBnftCntrctInd>0</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>0</PayPremiumsPrsnlBnftCntrctInd>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>0</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>7</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>5</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>0</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>0</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>0</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>0</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>0</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>1</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>1</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>1</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>1</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>1</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>1</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>0</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>0</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>CO</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>DR PETER FAWCETT</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>5052771641</PhoneNum>
        <USAddress>
          <AddressLine1Txt>DEPT OF EARTH PLANETARY SCIENCES</AddressLine1Txt>
          <CityNm>ALBUQUERQUE</CityNm>
          <StateAbbreviationCd>NM</StateAbbreviationCd>
          <ZIPCd>87131</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>DR JOHN SHOMAKER</PersonNm>
        <TitleTxt>PRESIDENT (THRU 10/28/23), DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PATRICK GRATTON</PersonNm>
        <TitleTxt>VP/TREASURER (THRU 10/28/23)</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DR PETER FAWCETT</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>40.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>143824</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>55523</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SUE SILVER HARIVANDI</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DR LINDSAY WORTHINGTON</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>40.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>129016</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>50328</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PETER CASTIGLIA</PersonNm>
        <TitleTxt>DIRECTOR, PRESIDENT (BEG. 10/28/23)</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ANNE TILLERY</PersonNm>
        <TitleTxt>DIRECTOR, VP (BEG. 10/28/23)</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SHALEENE CHAVARRIA</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>0</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>272840</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>105851</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>0</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>56918</TotalRevenueColumnAmt>
        <ExclusionAmt>56918</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>508135</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>365957</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>142178</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>142178</TotalRevenueColumnAmt>
        <ExclusionAmt>142178</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>199096</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>0</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>199096</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>84116</TotalAmt>
        <ProgramServicesAmt>84116</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>8414</TotalAmt>
        <ManagementAndGeneralAmt>8414</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>16046</TotalAmt>
        <ManagementAndGeneralAmt>16046</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <InsuranceGrp>
        <TotalAmt>788</TotalAmt>
        <ManagementAndGeneralAmt>788</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>FOREIGN TAXES PAID</Desc>
        <TotalAmt>489</TotalAmt>
        <ManagementAndGeneralAmt>489</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>109853</TotalAmt>
        <ProgramServicesAmt>84116</ProgramServicesAmt>
        <ManagementAndGeneralAmt>25737</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>44641</BOYAmt>
        <EOYAmt>40620</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>2193998</BOYAmt>
        <EOYAmt>2568654</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <BOYAmt>328729</BOYAmt>
        <EOYAmt>301219</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <TotalAssetsGrp>
        <BOYAmt>2567368</BOYAmt>
        <EOYAmt>2910493</EOYAmt>
      </TotalAssetsGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrgDoesNotFollowFASB117Ind>X</OrgDoesNotFollowFASB117Ind>
      <CapStkTrPrinCurrentFundsGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </CapStkTrPrinCurrentFundsGrp>
      <PdInCapSrplsLandBldgEqpFundGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </PdInCapSrplsLandBldgEqpFundGrp>
      <RtnEarnEndowmentIncmOthFndsGrp>
        <BOYAmt>2567368</BOYAmt>
        <EOYAmt>2910493</EOYAmt>
      </RtnEarnEndowmentIncmOthFndsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>2567368</BOYAmt>
        <EOYAmt>2910493</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>2567368</BOYAmt>
        <EOYAmt>2910493</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>89243</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>253882</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>0</FSAuditedInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <SupportingOrganization509a3Ind>X</SupportingOrganization509a3Ind>
      <SupportingOrgType3NonFuncInd>X</SupportingOrgType3NonFuncInd>
      <SupportedOrganizationsCnt>1</SupportedOrganizationsCnt>
      <SupportedOrgInformationGrp>
        <SupportedOrganizationName>
          <BusinessNameLine1Txt>UNIVERSITY OF NEW MEXICO DEPT OF EARTH &amp; PLANETARY SCIENCES</BusinessNameLine1Txt>
        </SupportedOrganizationName>
        <EIN>856000642</EIN>
        <OrganizationTypeCd>6</OrganizationTypeCd>
        <GoverningDocumentListedInd>1</GoverningDocumentListedInd>
        <SupportAmt>84116</SupportAmt>
        <OtherSupportAmt>0</OtherSupportAmt>
      </SupportedOrgInformationGrp>
      <SupportedOrganizationsTotalCnt>1</SupportedOrganizationsTotalCnt>
      <SupportSumAmt>84116</SupportSumAmt>
      <OtherSupportSumAmt>0</OtherSupportSumAmt>
      <Form990SchASupportingOrgGrp>
        <ListedByNameGoverningDocInd>1</ListedByNameGoverningDocInd>
        <SuprtOrgNoIRSDeterminationInd>1</SuprtOrgNoIRSDeterminationInd>
        <SupportedOrgSectionC456Ind>0</SupportedOrgSectionC456Ind>
        <SupportedOrgNotOrganizedUSInd>0</SupportedOrgNotOrganizedUSInd>
        <OrganizationChangeSuprtOrgInd>0</OrganizationChangeSuprtOrgInd>
        <SupportNonSupportedOrgInd>0</SupportNonSupportedOrgInd>
        <PaymentSubstantialContribtrInd>0</PaymentSubstantialContribtrInd>
        <LoanDisqualifiedPersonInd>0</LoanDisqualifiedPersonInd>
        <ControlledDisqualifiedPrsnInd>0</ControlledDisqualifiedPrsnInd>
        <DisqualifiedPrsnControllIntInd>0</DisqualifiedPrsnControllIntInd>
        <DisqualifiedPrsnOwnrIntInd>0</DisqualifiedPrsnOwnrIntInd>
        <ExcessBusinessHoldingsRulesInd>1</ExcessBusinessHoldingsRulesInd>
        <ExcessBusinessHoldingsInd>0</ExcessBusinessHoldingsInd>
        <ContributionControllerInd>0</ContributionControllerInd>
        <ContributionFamilyInd>0</ContributionFamilyInd>
        <Contribution35ControlledInd>0</Contribution35ControlledInd>
      </Form990SchASupportingOrgGrp>
      <Form990SchAType3SprtOrgAllGrp>
        <TimelyProvidedDocumentsInd>1</TimelyProvidedDocumentsInd>
        <OfficersCloseRelationshipInd>1</OfficersCloseRelationshipInd>
        <SupportedOrgVoiceInvestmentInd>1</SupportedOrgVoiceInvestmentInd>
      </Form990SchAType3SprtOrgAllGrp>
      <AdjustedNetIncomeGrp>
        <NetSTCapitalGainAdjNetIncmGrp>
          <PriorYearAmt>0</PriorYearAmt>
          <CurrentYearAmt>9096</CurrentYearAmt>
        </NetSTCapitalGainAdjNetIncmGrp>
        <RecoveriesPYDistributionsGrp>
          <PriorYearAmt>0</PriorYearAmt>
          <CurrentYearAmt>0</CurrentYearAmt>
        </RecoveriesPYDistributionsGrp>
        <OtherGrossIncomeGrp>
          <PriorYearAmt>48605</PriorYearAmt>
          <CurrentYearAmt>56918</CurrentYearAmt>
        </OtherGrossIncomeGrp>
        <AdjustedGrossIncomeGrp>
          <PriorYearAmt>48605</PriorYearAmt>
          <CurrentYearAmt>66014</CurrentYearAmt>
        </AdjustedGrossIncomeGrp>
        <DepreciationDepletionGrp>
          <PriorYearAmt>0</PriorYearAmt>
          <CurrentYearAmt>0</CurrentYearAmt>
        </DepreciationDepletionGrp>
        <ProductionIncomeGrp>
          <PriorYearAmt>23743</PriorYearAmt>
          <CurrentYearAmt>25737</CurrentYearAmt>
        </ProductionIncomeGrp>
        <OtherExpensesGrp>
          <PriorYearAmt>0</PriorYearAmt>
          <CurrentYearAmt>0</CurrentYearAmt>
        </OtherExpensesGrp>
        <TotalAdjustedNetIncomeGrp>
          <PriorYearAmt>24862</PriorYearAmt>
          <CurrentYearAmt>40277</CurrentYearAmt>
        </TotalAdjustedNetIncomeGrp>
      </AdjustedNetIncomeGrp>
      <MinimumAssetAmountGrp>
        <AverageMonthlyFMVOfSecGrp>
          <PriorYearAmt>2352774</PriorYearAmt>
          <CurrentYearAmt>2388762</CurrentYearAmt>
        </AverageMonthlyFMVOfSecGrp>
        <AverageMonthlyCashBalancesGrp>
          <PriorYearAmt>68406</PriorYearAmt>
          <CurrentYearAmt>39175</CurrentYearAmt>
        </AverageMonthlyCashBalancesGrp>
        <FMVOtherNonExemptUseAssetGrp>
          <PriorYearAmt>328729</PriorYearAmt>
          <CurrentYearAmt>301219</CurrentYearAmt>
        </FMVOtherNonExemptUseAssetGrp>
        <TotalFMVOfNonExemptUseAssetGrp>
          <PriorYearAmt>2749909</PriorYearAmt>
          <CurrentYearAmt>2729156</CurrentYearAmt>
        </TotalFMVOfNonExemptUseAssetGrp>
        <DiscountClaimedAmt>0</DiscountClaimedAmt>
        <AcquisitionIndebtednessGrp>
          <PriorYearAmt>0</PriorYearAmt>
          <CurrentYearAmt>0</CurrentYearAmt>
        </AcquisitionIndebtednessGrp>
        <AdjustedFMVLessIndebtednessGrp>
          <PriorYearAmt>2749909</PriorYearAmt>
          <CurrentYearAmt>2729156</CurrentYearAmt>
        </AdjustedFMVLessIndebtednessGrp>
        <CashDeemedCharitableGrp>
          <PriorYearAmt>41249</PriorYearAmt>
          <CurrentYearAmt>40937</CurrentYearAmt>
        </CashDeemedCharitableGrp>
        <NetVlNonExemptUseAssetsGrp>
          <PriorYearAmt>2708660</PriorYearAmt>
          <CurrentYearAmt>2688219</CurrentYearAmt>
        </NetVlNonExemptUseAssetsGrp>
        <PctOfNetVlNonExemptUseAstGrp>
          <PriorYearAmt>94803</PriorYearAmt>
          <CurrentYearAmt>94088</CurrentYearAmt>
        </PctOfNetVlNonExemptUseAstGrp>
        <RecoveriesPYDistriMinAssetGrp>
          <PriorYearAmt>0</PriorYearAmt>
          <CurrentYearAmt>0</CurrentYearAmt>
        </RecoveriesPYDistriMinAssetGrp>
        <TotalMinimumAssetGrp>
          <PriorYearAmt>94803</PriorYearAmt>
          <CurrentYearAmt>94088</CurrentYearAmt>
        </TotalMinimumAssetGrp>
      </MinimumAssetAmountGrp>
      <DistributableAmountGrp>
        <CYAdjNetIncomeDistributableAmt>24862</CYAdjNetIncomeDistributableAmt>
        <CYPct85AdjustedNetIncomeAmt>21133</CYPct85AdjustedNetIncomeAmt>
        <CYTotalMinAstDistributableAmt>94803</CYTotalMinAstDistributableAmt>
        <CYGreaterAdjustedMinimumAmt>94803</CYGreaterAdjustedMinimumAmt>
        <CYIncomeTaxImposedPYAmt>0</CYIncomeTaxImposedPYAmt>
        <CYDistributableAsAdjustedAmt>94803</CYDistributableAsAdjustedAmt>
      </DistributableAmountGrp>
      <DistributionsGrp>
        <CYPaidAccomplishExemptPrpsAmt>84116</CYPaidAccomplishExemptPrpsAmt>
        <CYPdInExcessIncomeActivityAmt>0</CYPdInExcessIncomeActivityAmt>
        <CYAdministrativeExpensePaidAmt>0</CYAdministrativeExpensePaidAmt>
        <ExemptUseAssetsAcquisPaidAmt>0</ExemptUseAssetsAcquisPaidAmt>
        <QualifiedSetAsideAmt>0</QualifiedSetAsideAmt>
        <CYOtherDistributionsAmt>0</CYOtherDistributionsAmt>
        <CYTotalAnnualDistributionsAmt>84116</CYTotalAnnualDistributionsAmt>
        <CYDistriAttentiveSuprtOrgAmt>84116</CYDistriAttentiveSuprtOrgAmt>
        <CYDistributableAsAdjustedAmt>94803</CYDistributableAsAdjustedAmt>
        <CYDistributionYrRt>88.730000000000</CYDistributionYrRt>
      </DistributionsGrp>
      <DistributionAllocationsGrp>
        <CYDistributableAsAdjustedAmt>94803</CYDistributableAsAdjustedAmt>
        <UnderdistributionsAmt>0</UnderdistributionsAmt>
        <ExcessDistributionCyovYr5Amt>0</ExcessDistributionCyovYr5Amt>
        <ExcessDistributionCyovYr4Amt>0</ExcessDistributionCyovYr4Amt>
        <ExcessDistributionCyovYr3Amt>0</ExcessDistributionCyovYr3Amt>
        <ExcessDistributionCyovYr2Amt>0</ExcessDistributionCyovYr2Amt>
        <ExcessDistributionCyovYr1Amt>27895</ExcessDistributionCyovYr1Amt>
        <TotalExcessDistributionCyovAmt>27895</TotalExcessDistributionCyovAmt>
        <CyovAppliedUnderdistriPYAmt>0</CyovAppliedUnderdistriPYAmt>
        <CyovAppliedUnderdistrCPYAmt>27895</CyovAppliedUnderdistrCPYAmt>
        <CarryoverPYNotAppliedAmt>0</CarryoverPYNotAppliedAmt>
        <ExcessDistributionCyovAmt>0</ExcessDistributionCyovAmt>
        <CYTotalAnnualDistributionsAmt>84116</CYTotalAnnualDistributionsAmt>
        <CYDistribAppUnderdistriPYAmt>0</CYDistribAppUnderdistriPYAmt>
        <CYDistriAppDistributableAmt>66908</CYDistriAppDistributableAmt>
        <ExcessDistributionAmt>17208</ExcessDistributionAmt>
        <RemainingUnderdistriPYAmt>0</RemainingUnderdistriPYAmt>
        <RemainingUnderdistriCYAmt>0</RemainingUnderdistriCYAmt>
        <ExcessDistriCyovToNextYrAmt>17208</ExcessDistriCyovToNextYrAmt>
        <ExcessFromYear5Amt>0</ExcessFromYear5Amt>
        <ExcessFromYear4Amt>0</ExcessFromYear4Amt>
        <ExcessFromYear3Amt>0</ExcessFromYear3Amt>
        <ExcessFromYear2Amt>0</ExcessFromYear2Amt>
        <ExcessFromYear1Amt>17208</ExcessFromYear1Amt>
      </DistributionAllocationsGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>PART IV, SECTION A, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION SUPPORTS A STATE UNIVERSITY, WHICH IS NOT REQUIRED TO OBTAIN RECOGNITION OF ITS PUBLIC CHARITY STATUS.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>PART IV, SECTION D, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CASWELL SILVER FOUNDATION (FOUNDATION) IS A 501(C)(3) ORGANIZATION CLASSIFIED AS A SUPPORTING ORGANIZATION UNDER 509(A)(3). FURTHER, UNDER THE FOUNDATION'S ARTICLES AND BYLAWS, IT SUPPORTS THE UNIVERSITY OF NEW MEXICO'S DEPARTMENT OF EARTH AND PLANETARY SCIENCES (DEPARTMENT) AND SPECIFICALLY, HOLDS, ADMINISTERS, INVESTS AND DISTRIBUTES FOUNDATION FUNDS OR THE EARNINGS THEREFROM TO THE DEPARTMENT ON A REGULAR QUARTERLY AND TIMELY BASIS. THE UNIVERSITY OF NEW MEXICO (UNM) IS A STATE-OWNED INSTITUTION THAT CAN BE DESCRIBED AS A STATE GOVERNMENTAL UNIT ACCORDING TO IRC SECTION 170(B)(1)(A)(V). THE FOUNDATION HAS A BOARD OF DIRECTORS, WHICH INCLUDES THE CHAIR OF THE DEPARTMENT AND ONE OTHER UNM FACULTY MEMBER. THE BYLAWS OF THE FOUNDATION PROVIDE THAT THE CHAIR OF THE DEPARTMENT SHALL BE AN EX-OFFICIO MEMBER OF THE BOARD. THE BYLAWS ALSO PROVIDE THAT ANOTHER MEMBER OF THE DEPARTMENT FACULTY, APPOINTED BY THE DEPARTMENT CHAIR, SHALL BE A MEMBER OF THE BOARD. THE CHAIR OF THE DEPARTMENT ALSO SERVES ON THE GOVERNING BODY OF THE SUPPORTED ORGANIZATION IN HIS/HER POSITION IN THE GOVERNANCE OF THE DEPARTMENT. BOTH OF THESE FACULTY MEMBERS AS FULL VOTING MEMBERS OF THE FOUNDATION'S BOARD HAVE A SIGNIFICANT VOICE IN THE ORGANIZATION'S POLICIES AND USE OF ASSETS. THE GOVERNING DOCUMENTS PROVIDE THE BOARD WITH DISCRETION REGARDING THE TIMING AND AMOUNT OF DISTRIBUTIONS CONSISTENT WITH THE BOARD'S FIDUCIARY DUTIES. REPRESENTATIVES OF THE BOARD HAVE REGULAR FACE-TO-FACE MEETINGS DURING WHICH THEY DISCUSS THE PERFORMANCE OF THE FOUNDATION'S INVESTMENTS, THE MONITORING OF THE INVESTMENTS, AND THE ASSET MIX OF THE INVESTMENTS. ALSO DURING THESE SEMI-ANNUAL MEETINGS, THE DEPARTMENT'S PROJECTS AND ACTIVITIES ARE DISCUSSED, INCLUDING THEIR PROJECTED NEEDS FOR INCOME FROM THE FOUNDATION. THE FOUNDATION'S BOARD COMMUNICATES REGULARLY WITH THE CHAIR OF THE DEPARTMENT REGARDING THE FOUNDATION'S INVESTMENTS AND PLANS FOR DISTRIBUTIONS. THE FOUNDATION'S INVESTMENT STATEMENTS ARE PREPARED FOR AND REVIEWED BY THE FOUNDATION'S BOARD, WHICH INCLUDES THE CHAIR OF THE DEPARTMENT AND ONE OTHER UNM FACULTY MEMBER.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <TotalBookValueLandBuildingsAmt>0</TotalBookValueLandBuildingsAmt>
      <OtherSecuritiesGrp>
        <Desc>CPG FOCUSED ACCESS FUND</Desc>
        <BookValueAmt>84075</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>CPG VINTAGE ACCESS FUND</Desc>
        <BookValueAmt>217144</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <TotalBookValueSecuritiesAmt>301219</TotalBookValueSecuritiesAmt>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>DEPARTMENT OF EARTH AND PLANETARY SCIENCES</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>MSC 03-2040 1 UNIVERSITY OF NEW</AddressLine1Txt>
          <AddressLine2Txt>MEXICO</AddressLine2Txt>
          <CityNm>ALBUQUERQUE</CityNm>
          <StateAbbreviationCd>NM</StateAbbreviationCd>
          <ZIPCd>871310001</ZIPCd>
        </USAddress>
        <RecipientEIN>856000642</RecipientEIN>
        <IRCSectionDesc>STATE OF NM</IRCSectionDesc>
        <CashGrantAmt>84116</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>FELLOWSHIPS</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>1</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>GRANTS FROM THE CASWELL SILVER FOUNDATION ARE MADE ONLY TO THE UNIVERSITY OF NEW MEXICO DEPARTMENT OF EARTH AND PLANETARY SCIENCES. ANNUALLY, THE UNM DEPARTMENT OF EARTH AND PLANETARY SCIENCES PROVIDES AN EXPENDITURE REPORT TO THE FOUNDATION. THIS REPORT INCLUDES SUBGRANT DETAIL OF THE BENEFICIARIES, THE USE OF THE FUNDS, AND BUDGET VARIANCES. THESE REPORTS ARE REVIEWED BY THE BOARD OF DIRECTORS FOR COMPLETENESS AND COMPLIANCE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>0</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DR PETER FAWCETT</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>143824</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>25231</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>30292</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>199347</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DR LINDSAY WORTHINGTON</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>129016</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>19431</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>30897</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>179344</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>AFTER THE RETURN IS PREPARED BY AN INDEPENDENT ACCOUNTING FIRM, THE PRESIDENT OF THE BOARD OF DIRECTORS REVIEWS THE FORM 990 FOR COMPLETENESS AND ACCURACY AND APPROVES IT. THE PRESIDENT THEN SHARES THE FORM 990 WITH THE VICE PRESIDENT. BOTH THE PRESIDENT AND THE VICE PRESIDENT PROVIDE APPROVALS TO THE INDEPENDENT PREPARER PRIOR TO FILING. A COPY OF THE FORM 990 IS ALSO PROVIDED TO ALL BOARD MEMBERS PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CONFLICT OF INTEREST POLICY IS REVIEWED WITH EACH BOARD MEMBER ANNUALLY AT BOARD MEETINGS. ALL CONFLICTS ARE DOCUMENTED. IF A CONFLICT ARISES, THE PERSON WITH SUCH CONFLICT IS NOT ALLOWED TO VOTE ON THE TRANSACTION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>NO DOCUMENTS ARE AVAILABLE TO THE PUBLIC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CASWELL SILVER FOUNDATION IS OPERATED ON A VOLUNTEER BASIS. ALL BOARD MEMBERS ARE VOLUNTEERS AND THERE ARE NO PAID EMPLOYEES OF THE ORGANIZATION. ACCORDINGLY, COMPENSATION REVIEW AND APPROVAL BY THE BOARD IS NOT APPLICABLE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>UNIVERSITY OF NEW MEXICO DEPARTMENT OF EARTH AND PLANETARY SCIENCES</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>MSC 03-2040 1 UNIVERSITY OF NEW MEX</AddressLine1Txt>
          <CityNm>ALBUQUERQUE</CityNm>
          <StateAbbreviationCd>NM</StateAbbreviationCd>
          <ZIPCd>871310001</ZIPCd>
        </USAddress>
        <EIN>856000642</EIN>
        <PrimaryActivitiesTxt>EDUCATIONAL INSTITUTION</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NM</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>STATE OF NM</ExemptCodeSectionTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>1</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>0</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>0</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
    </IRS990ScheduleR>
  </ReturnData>
</Return>