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        <ManagementAndGeneralAmt>2643</ManagementAndGeneralAmt>
        <FundraisingAmt>1133</FundraisingAmt>
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      <FeesForServicesAccountingGrp>
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        <ManagementAndGeneralAmt>5199</ManagementAndGeneralAmt>
        <FundraisingAmt>1300</FundraisingAmt>
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      <OfficeExpensesGrp>
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        <ManagementAndGeneralAmt>616</ManagementAndGeneralAmt>
        <FundraisingAmt>264</FundraisingAmt>
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      <OccupancyGrp>
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        <ManagementAndGeneralAmt>1050</ManagementAndGeneralAmt>
        <FundraisingAmt>450</FundraisingAmt>
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        <ManagementAndGeneralAmt>972</ManagementAndGeneralAmt>
        <FundraisingAmt>243</FundraisingAmt>
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        <ProgramServicesAmt>1336</ProgramServicesAmt>
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        <FundraisingAmt>267</FundraisingAmt>
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        <FundraisingAmt>1509</FundraisingAmt>
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      <OtherExpensesGrp>
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      <OtherExpensesGrp>
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      <OtherExpensesGrp>
        <Desc>Telecommunications</Desc>
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        <FundraisingAmt>19369</FundraisingAmt>
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        <EOYAmt>397526</EOYAmt>
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      <PrepaidExpensesDefrdChargesGrp>
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        <EOYAmt>973</EOYAmt>
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        <EOYAmt>142538</EOYAmt>
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        <EOYAmt>612322</EOYAmt>
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      <AccountsPayableAccrExpnssGrp>
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        <EOYAmt>26719</EOYAmt>
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      <OtherLiabilitiesGrp>
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        <EOYAmt>293874</EOYAmt>
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      <TotalLiabilitiesGrp>
        <BOYAmt>274756</BOYAmt>
        <EOYAmt>320593</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>157482</BOYAmt>
        <EOYAmt>149191</EOYAmt>
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      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>119721</BOYAmt>
        <EOYAmt>142538</EOYAmt>
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      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>277203</BOYAmt>
        <EOYAmt>291729</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>551959</BOYAmt>
        <EOYAmt>612322</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>14526</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
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    <IRS990ScheduleA documentId="990A">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
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        <CurrentTaxYearMinus3YearsAmt>707038</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>481890</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>525056</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>540947</CurrentTaxYearAmt>
        <TotalAmt>2602032</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
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        <CurrentTaxYearMinus3YearsAmt>707038</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>481890</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>525056</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>540947</CurrentTaxYearAmt>
        <TotalAmt>2602032</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>156160</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>2445872</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>281</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>8559</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>14172</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearAmt>27154</CurrentTaxYearAmt>
        <TotalAmt>50166</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>2652198</TotalSupportAmt>
      <PublicSupportCY170Pct>0.92220</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.88960</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="990B">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
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    <IRS990ScheduleD documentId="990D">
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      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
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        <EndYearBalanceAmt>119721</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>112608</BeginningYearBalanceAmt>
        <ContributionsAmt>252</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>13804</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>126664</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
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        <InvestmentEarningsOrLossesAmt>8034</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>112608</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
      <CYMinus4YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>104690</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>-116</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>104574</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <PrmnntEndowmentBalanceEOYPct>1.00000</PrmnntEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>true</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>false</EndowmentsHeldRelatedOrgInd>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>2034</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>2034</DepreciationAmt>
      </EquipmentGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>DEFERRED REVENUE</Desc>
        <Amt>293874</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>293874</TotalLiabilityAmt>
      <TotalRevEtcAuditedFinclStmtAmt>599055</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueSubtotalAmt>599055</RevenueSubtotalAmt>
      <TotalRevenuePerForm990Amt>599055</TotalRevenuePerForm990Amt>
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      <ExpensesSubtotalAmt>584529</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>584529</TotalExpensesPerForm990Amt>
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    <IRS990ScheduleG documentId="990G">
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        <GrossRevenueEvent1Amt>62660</GrossRevenueEvent1Amt>
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        <Event2Nm>Other</Event2Nm>
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        <GrossRevenueEvent2Amt>3186</GrossRevenueEvent2Amt>
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        <GrossRevenueTotalEventsAmt>65846</GrossRevenueTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>34892</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>34892</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>30954</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleI documentId="990I">
      <GrantRecordsMaintainedInd>true</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Saguaro National Park</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>2700 N Kinney Road</AddressLine1Txt>
          <CityNm>Tucson</CityNm>
          <StateAbbreviationCd>AZ</StateAbbreviationCd>
          <ZIPCd>85743</ZIPCd>
        </USAddress>
        <CashGrantAmt>460248</CashGrantAmt>
        <ValuationMethodUsedDesc>CASH</ValuationMethodUsedDesc>
        <PurposeOfGrantTxt>General support</PurposeOfGrantTxt>
      </RecipientTable>
    </IRS990ScheduleI>
    <IRS990ScheduleO documentId="990O">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990 governing body review Part VI line 11</FormAndLineReferenceDesc>
        <ExplanationTxt>The 990 is reviewed by the Treasurer and the Executive Committee prior to filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Conflict of interest policy compliance Part VI line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Board members are required to disclose any conflicts of interest as they may arise by the next board meeting.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Governing documents etc available to public Part VI line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>All governing documents and the 990 are available for public inspection upon request at the organizatons office.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>