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      <PayrollTaxesGrp>
        <TotalAmt>5828</TotalAmt>
        <ProgramServicesAmt>2914</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2040</ManagementAndGeneralAmt>
        <FundraisingAmt>874</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>6458</TotalAmt>
        <ManagementAndGeneralAmt>5166</ManagementAndGeneralAmt>
        <FundraisingAmt>1292</FundraisingAmt>
      </FeesForServicesAccountingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>2064</TotalAmt>
        <ProgramServicesAmt>1032</ProgramServicesAmt>
        <ManagementAndGeneralAmt>722</ManagementAndGeneralAmt>
        <FundraisingAmt>310</FundraisingAmt>
      </OfficeExpensesGrp>
      <OccupancyGrp>
        <TotalAmt>3000</TotalAmt>
        <ProgramServicesAmt>1500</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1050</ManagementAndGeneralAmt>
        <FundraisingAmt>450</FundraisingAmt>
      </OccupancyGrp>
      <InsuranceGrp>
        <TotalAmt>1544</TotalAmt>
        <ProgramServicesAmt>1158</ProgramServicesAmt>
        <ManagementAndGeneralAmt>154</ManagementAndGeneralAmt>
        <FundraisingAmt>232</FundraisingAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>Publications</Desc>
        <TotalAmt>8100</TotalAmt>
        <ProgramServicesAmt>6075</ProgramServicesAmt>
        <ManagementAndGeneralAmt>810</ManagementAndGeneralAmt>
        <FundraisingAmt>1215</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Bank and cc merchant fees</Desc>
        <TotalAmt>4897</TotalAmt>
        <ManagementAndGeneralAmt>3918</ManagementAndGeneralAmt>
        <FundraisingAmt>979</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Postage</Desc>
        <TotalAmt>2226</TotalAmt>
        <ProgramServicesAmt>1669</ProgramServicesAmt>
        <ManagementAndGeneralAmt>223</ManagementAndGeneralAmt>
        <FundraisingAmt>334</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Telecommunications</Desc>
        <TotalAmt>1275</TotalAmt>
        <ProgramServicesAmt>638</ProgramServicesAmt>
        <ManagementAndGeneralAmt>446</ManagementAndGeneralAmt>
        <FundraisingAmt>191</FundraisingAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>3496</TotalAmt>
        <ProgramServicesAmt>1749</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1223</ManagementAndGeneralAmt>
        <FundraisingAmt>524</FundraisingAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>561563</TotalAmt>
        <ProgramServicesAmt>500126</ProgramServicesAmt>
        <ManagementAndGeneralAmt>43251</ManagementAndGeneralAmt>
        <FundraisingAmt>18186</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <JointCostsInd>X</JointCostsInd>
      <CashNonInterestBearingGrp>
        <BOYAmt>61768</BOYAmt>
        <EOYAmt>35097</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>397526</BOYAmt>
        <EOYAmt>416788</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <AccountsReceivableGrp>
        <BOYAmt>9517</BOYAmt>
        <EOYAmt>8918</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>973</BOYAmt>
        <EOYAmt>2490</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>2034</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>2034</LandBldgEquipAccumDeprecAmt>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>142538</BOYAmt>
        <EOYAmt>159181</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <TotalAssetsGrp>
        <BOYAmt>612322</BOYAmt>
        <EOYAmt>622474</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>26719</BOYAmt>
        <EOYAmt>26731</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>293874</BOYAmt>
        <EOYAmt>301519</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>320593</BOYAmt>
        <EOYAmt>328250</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>149191</BOYAmt>
        <EOYAmt>135043</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>142538</BOYAmt>
        <EOYAmt>159181</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>291729</BOYAmt>
        <EOYAmt>294224</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>612322</BOYAmt>
        <EOYAmt>622474</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>2495</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="990A">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>707038</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>481890</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>525056</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>540947</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>529039</CurrentTaxYearAmt>
        <TotalAmt>2783970</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>707038</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>481890</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>525056</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>540947</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>529039</CurrentTaxYearAmt>
        <TotalAmt>2783970</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>136818</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>2647152</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>8559</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>14172</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus1YearAmt>27154</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>5367</CurrentTaxYearAmt>
        <TotalAmt>55252</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>2839222</TotalSupportAmt>
      <PublicSupportCY170Pct>0.93240</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.92220</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>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="990D">
      <CYEndwmtFundGrp>
        <BeginningYearBalanceAmt>142538</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>16644</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>159182</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>119721</BeginningYearBalanceAmt>
        <ContributionsAmt>509</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>22308</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>142538</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>126664</BeginningYearBalanceAmt>
        <ContributionsAmt>267</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>-7210</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>119721</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>112608</BeginningYearBalanceAmt>
        <ContributionsAmt>252</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>13804</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>126664</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
      <CYMinus4YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>104574</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>8034</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>112608</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <EndowmentsHeldUnrelatedOrgInd>true</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>false</EndowmentsHeldRelatedOrgInd>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>2034</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>2034</DepreciationAmt>
      </EquipmentGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>DEFERRED REVENUE</Desc>
        <Amt>301519</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>301519</TotalLiabilityAmt>
      <TotalRevEtcAuditedFinclStmtAmt>564058</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueSubtotalAmt>564058</RevenueSubtotalAmt>
      <TotalRevenuePerForm990Amt>564058</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>561563</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>561563</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>561563</TotalExpensesPerForm990Amt>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="990G">
      <FundraisingEventInformationGrp>
        <Event1Nm>Dinner</Event1Nm>
        <Event2Nm>Other</Event2Nm>
      </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>444109</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>