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      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
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      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
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        <BusinessCd>611710</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>95257</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
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        <ExclusionAmt>321708</ExclusionAmt>
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      <RentalIncomeOrLossGrp>
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      <NetRentalIncomeOrLossGrp>
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        <RelatedOrExemptFuncIncomeAmt>6442</RelatedOrExemptFuncIncomeAmt>
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        <SecuritiesAmt>2398905</SecuritiesAmt>
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      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>694097</TotalRevenueColumnAmt>
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        <ExclusionAmt>1015805</ExclusionAmt>
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      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
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        <ProgramServicesAmt>91511</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>25000</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
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        <EOYAmt>52448</EOYAmt>
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        <CurrentTaxYearMinus1YearAmt>1266001</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1572799</CurrentTaxYearAmt>
        <TotalAmt>5104258</TotalAmt>
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      <SubstantialContributorsTotAmt>1460480</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>3643778</PublicSupportTotal170Amt>
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        <CurrentTaxYearMinus2YearsAmt>228969</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>282171</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>321708</CurrentTaxYearAmt>
        <TotalAmt>1172708</TotalAmt>
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      <TotalSupportAmt>6276966</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>1401446</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.58050</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.67070</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
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          <AddressLine2>RESTRICTED</AddressLine2>
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      <WrittenPolicyMonitoringInd>1</WrittenPolicyMonitoringInd>
      <StaffHoursSpentEnforcementCnt>840.00</StaffHoursSpentEnforcementCnt>
      <ExpensesIncurredEnforcementAmt>31000</ExpensesIncurredEnforcementAmt>
      <AgentTrusteeEtcInd>0</AgentTrusteeEtcInd>
      <InclEscrowCustodialAcctLiabInd>1</InclEscrowCustodialAcctLiabInd>
      <ExplanationProvidedInd>X</ExplanationProvidedInd>
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        <ContributionsAmt>237888</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>1349875</InvestmentEarningsOrLossesAmt>
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        <AdministrativeExpensesAmt>46101</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>13063887</EndYearBalanceAmt>
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        <EndYearBalanceAmt>11987225</EndYearBalanceAmt>
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        <EndYearBalanceAmt>10391076</EndYearBalanceAmt>
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        <EndYearBalanceAmt>10609973</EndYearBalanceAmt>
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      <TermEndowmentBalanceEOYPct>0.10067</TermEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>0</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>0</EndowmentsHeldRelatedOrgInd>
      <LandGrp>
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        <BookValueAmt>6432116</BookValueAmt>
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      <BuildingsGrp>
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        <BookValueAmt>847255</BookValueAmt>
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      <LeaseholdImprovementsGrp>
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      <EquipmentGrp>
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        <BookValueAmt>332694</BookValueAmt>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <RevenueNotReportedFinclStmtAmt>46101</RevenueNotReportedFinclStmtAmt>
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      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>1403236</ExpensesSubtotalAmt>
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      <ExpensesNotRptFinclStmtAmt>46101</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>1449337</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART II, LINE 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>CONSERVATION EASEMENTS REPORTED IN THE FINANCIAL STATEMENTS: "CONSERVATION EASEMENTS ON LAND, LAND IN WHICH THE CENTER HAS AN EXECUTORY INTEREST AND LAND WITH DEED RESTRICTIONS ARE NOT READILY MARKETABLE ASSETS OF THE CENTER AND ARE, THEREFORE, NOT RECORDED IN THE LAND ACCOUNT."</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART IV, LINE 2B:</FormAndLineReferenceDesc>
        <ExplanationTxt>IN DECEMBER 2000, THE HARRIS CENTER FOR CONSERVATION EDUCATION RECEIVED $187,000 FROM THE COLONY MEMORIAL FOR THE PURPOSE OF ASSISTING THEM IN ACQUIRING FEE INTEREST AND/OR DEVELOPMENTAL RIGHTS. HARRIS CENTER WILL HOLD THE MONEY UNTIL SUCH TIME THAT APPROPRIATE REAL ESTATE IS FOUND. ANY INTEREST PURCHASED WITH THESE FUNDS WILL BE ACQUIRED IN THE NAME OF THE COLONY MEMORIAL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>PRINCIPAL TO BE HELD IN PERPETUITY ACCORDING TO DONORS' RESTRICTIONS. REVENUE TO BE USED FOR EXEMPT OPERATING PURPOSES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CENTER QUALIFIES AS AN ORGANIZATION EXEMPT FROM INCOME TAX UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE AND IS CLASSIFIED AS OTHER THAN A PRIVATE FOUNDATION; HOWEVER, CERTAIN UNRELATED BUSINESS INCOME IS SUBJECT TO FEDERAL TAXATION. FOR THE YEAR ENDED JUNE 30, 2024, THERE WAS NO LIABILITY FOR A TAX ON UNRELATED BUSINESS INCOME. THE CENTER ADOPTED THE PROVISION OF FASB ASC 740, ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES. ACCORDINGLY, MANAGEMENT EVALUATED THE CENTER'S TAX POSITIONS AND CONCLUDED THE CENTER HAD MAINTAINED ITS TAX-EXEMPT STATUS, DOES NOT HAVE ANY SIGNIFICANT UNRELATED BUSINESS INCOME AND HAD TAKEN NO UNCERTAIN TAX POSITIONS THAT REQUIRE ADJUSTMENT OR DISCLOSURE IN THE FINANCIAL STATEMENTS. WITH FEW EXCEPTIONS, THE CENTER IS NO LONGER SUBJECT TO INCOME TAX EXAMINATIONS BY THE U.S. FEDERAL OR STATE TAX AUTHORITIES FOR TAX YEARS BEFORE 2022.</ExplanationTxt>
      </SupplementalInformationDetail>
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        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>5</ContributionCnt>
        <NoncashContributionsRptF990Amt>396884</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </SecuritiesPubliclyTradedGrp>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>1</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>0</ThirdPartiesUsedInd>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE 990 IS REVIEWED BY THE BOARD CHAIR AND TREASURER. THE DOCUMENT IS AVAILABLE TO THE FULL BOARD FOR REVIEW AND A SUMMARY IS PROVIDED AT A REGULARLY SCHEDULED BOARD MEETING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>CONFLICT OF INTEREST STATEMENTS ARE REVIEWED AND UPDATED AT THE FIRST FULL BOARD MEETING FOLLOWING THE FALL ANNUAL MEETING. THIS PROVIDES THE OPPORTUNITY FOR NEW BOARD MEMBERS TO FILL OUT CONFLICT OF INTEREST STATEMENTS AND CURRENT BOARD MEMBERS TO REVIEW THEIR PREVIOUS STATEMENTS AND UPDATE INFORMATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE DIRECTOR'S SALARY IS SET BY THE BOARD. THEY SET THE WAGE LEVEL AFTER REVIEWING A COMBINATION OF FACTORS, INCLUDING COMPETITIVE WAGE DATA, THE EXPERIENCE LEVEL OF THE EXECUTIVE DIRECTOR, AND THE OVERALL SIZE OF THE ORGANIZATION. THE COMPETITIVE ANALYSIS INCLUDED DATA FROM 3 SOURCES, INCLUDING DATA FROM THE NH CENTER FOR NON-PROFITS, A LOCAL NON-PROFIT SALARY STUDY AND PAYSCALE.COM.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>CURRENTLY ALL DOCUMENTS ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 24E</FormAndLineReferenceDesc>
        <ExplanationTxt>ANNUITY EXPENSE: PROGRAM SERVICE EXPENSES 0. MANAGEMENT AND GENERAL EXPENSES 1,038. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 1,038. CREDIT LOSSES: PROGRAM SERVICE EXPENSES 0. MANAGEMENT AND GENERAL EXPENSES 0. FUNDRAISING EXPENSES 80. TOTAL EXPENSES 80.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE HARRIS CENTER AUDIT COMMITTEE IS RESPONSIBLE FOR OVERSIGHT OF THE AUDIT, REVIEW OR COMPILATION OF FINANCIAL STATEMENTS AND SELECTION OF AN INDEPENDENT ACCOUNTANT. THE CHARTER OF THE COMMITTEE STATES THE RESPONSIBILITIES OF THE COMMITTEE INCLUDE: ENGAGE INDEPENDENT AUDITOR; SERVE AS CHANNEL OF COMMUNICATION BETWEEN AUDITOR AND THE BOARD; REVIEW HARRIS CENTER FINANCIAL REPORTS AND ACCOUNTING PROCEDURES; AND REVIEW MANAGEMENT LETTER, IF ANY, ISSUED BY THE AUDITOR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>