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        <EOYAmt>29000</EOYAmt>
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        <EOYAmt>1386000</EOYAmt>
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        <EOYAmt>2808916</EOYAmt>
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        <EOYAmt>1303</EOYAmt>
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      <TotalLiabilitiesGrp>
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        <EOYAmt>1303</EOYAmt>
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      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
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        <EOYAmt>2807613</EOYAmt>
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      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>1572457</BOYAmt>
        <EOYAmt>2807613</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>1574431</BOYAmt>
        <EOYAmt>2808916</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>1161375</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>72782</NetUnrlzdGainsLossesInvstAmt>
      <PriorPeriodAdjustmentsAmt>999</PriorPeriodAdjustmentsAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>0</FSAuditedInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>367835</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>834784</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>328620</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>330281</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1668690</CurrentTaxYearAmt>
        <TotalAmt>3530210</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>367835</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>834784</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>328620</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>330281</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1668690</CurrentTaxYearAmt>
        <TotalAmt>3530210</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>3530210</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>356</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>3687</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>31905</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>29951</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>30022</CurrentTaxYearAmt>
        <TotalAmt>95921</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>97</CurrentTaxYearMinus4YearsAmt>
        <TotalAmt>97</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>3626228</TotalSupportAmt>
      <PublicSupportCY170Pct>0.97350</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.95770</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>PART II, LINE 10 - OTHER INCOME DETAIL</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER INCOME $97</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <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="RetDoc1040000001">
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        <BeginningYearBalanceAmt>125587</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>12542</InvestmentEarningsOrLossesAmt>
        <AdministrativeExpensesAmt>4</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>138125</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>116477</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>12963</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>3000</OtherExpendituresAmt>
        <AdministrativeExpensesAmt>51</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>125587</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>107345</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>9924</InvestmentEarningsOrLossesAmt>
        <AdministrativeExpensesAmt>793</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>116477</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
        <ContributionsAmt>100000</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>7470</InvestmentEarningsOrLossesAmt>
        <AdministrativeExpensesAmt>125</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>107345</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
      <EndowmentsHeldUnrelatedOrgInd>0</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>0</EndowmentsHeldRelatedOrgInd>
      <LandGrp>
        <OtherCostOrOtherBasisAmt>24540</OtherCostOrOtherBasisAmt>
        <BookValueAmt>24540</BookValueAmt>
      </LandGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>11019</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>4299</DepreciationAmt>
        <BookValueAmt>6720</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>27741</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>25741</DepreciationAmt>
        <BookValueAmt>2000</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>33260</TotalBookValueLandBuildingsAmt>
      <OtherSecuritiesGrp>
        <Desc>FIDELITY - 172551</Desc>
        <BookValueAmt>138125</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>FIDELITY - 351292</Desc>
        <BookValueAmt>1080767</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <TotalBookValueSecuritiesAmt>1218892</TotalBookValueSecuritiesAmt>
      <OtherAssetsOrgGrp>
        <Desc>MITIGATION BANK</Desc>
        <BookValueAmt>1385000</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>DEPOSITS</Desc>
        <BookValueAmt>1000</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>1386000</TotalBookValueOtherAssetsAmt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD DESIGNATED ENDOWMENT WAS ESTABLISHED THROUGH THE 1919 INVESTMENT COUNSEL, WITH A MUTUALLY AGREED UPON FEE, USING A RESPONSIVE INVESTMENT GUIDE. THE INVESTMENTS MUST MEET THE BOARD'S INVESTMENT POLICY. THE MAJORITY OF THE BOARD MUST APPROVE OF ANY DECISION TO CHANGE INVESTMENT COMPANIES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleM documentId="RetDoc1042900001">
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>MITIGATION BANK</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>1385000</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>INDEP. APPRAISAL</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>0</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>0</ThirdPartiesUsedInd>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>CADDO LAKE INSTITUTE, INC. IS A NON-PROFIT SCIENTIFIC AND EDUCATIONAL CORPORATION WITH THE MISSION OF PROTECTING THE ECOLOGICAL, CULTURAL AND ECONOMIC INTEGRITY OF CADDO LAKE, ITS ASSOCIATED WETLANDS, AND SURROUNDING PLANT AND WILDLIFE HABITATS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS REVIEWED IN DETAIL BY THE CHAIRMAN OF THE BOARD, THE TREASURER OF THE BOARD, AND THE EXECUTIVE DIRECTOR PRIOR TO FILING WITH THE IRS. THE FORM 990 IS PROVIDED TO ALL BOARD MEMBERS TO REVIEW PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS CONFLICT OF INTEREST POLICY ON FILE AND IS AVAILABLE FOR PUBLIC INSPECTION. AN INTERESTED PERSON MUST DISCLOSE THE EXISTENCE OF THE FINANCIAL INTEREST AND BE GIVEN THE OPPORTUNITY TO DISCLOSE ALL MATERIAL FACTS TO THE DIRECTORS AND MEMBERS OF THE COMMITTEES WITH THE GOVERNING BOARD DELEGATED POWERS CONSIDERING THE PROPOSED TRANSACTION OR ARRANGEMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SALARIES OF THE EXECUTIVE DIRECTOR AND KEY PERSONNEL ARE LINE ITEMS ON THE BUDGET THAT ARE PRESENTED ANNUALLY TO THE BOARD FOR APPROVAL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 18</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION PROVIDES FORM 1023, FORM 990, AND FORM 990T ON ITS WEBSITE FOR PUBLIC INSPECTION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS DISCLOSURE EXPLANATION THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS AVAILABLE UPON REQUEST AT THE ORGANIZATION'S OFFICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>COLLABORATION&amp; CONTRACT SERVICES: PROGRAM SERVICE EXPENSES 210,049. MANAGEMENT AND GENERAL EXPENSES 153. FUNDRAISING EXPENSES 175. TOTAL EXPENSES 210,377.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>