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        <OtherAmt>33723</OtherAmt>
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      <NetGainOrLossInvestmentsGrp>
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        <ExclusionAmt>33723</ExclusionAmt>
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      <OtherRevenueMiscGrp>
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        <RelatedOrExemptFuncIncomeAmt>19048</RelatedOrExemptFuncIncomeAmt>
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      <OtherRevenueMiscGrp>
        <Desc>MISCELLANEOUS</Desc>
        <TotalRevenueColumnAmt>859</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>859</RelatedOrExemptFuncIncomeAmt>
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      <OtherRevenueTotalAmt>19907</OtherRevenueTotalAmt>
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        <ExclusionAmt>54242</ExclusionAmt>
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      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <CompCurrentOfcrDirectorsGrp>
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        <ProgramServicesAmt>378151</ProgramServicesAmt>
        <ManagementAndGeneralAmt>101158</ManagementAndGeneralAmt>
        <FundraisingAmt>38334</FundraisingAmt>
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        <TotalAmt>811871</TotalAmt>
        <ProgramServicesAmt>663063</ProgramServicesAmt>
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        <FundraisingAmt>97102</FundraisingAmt>
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      <PensionPlanContributionsGrp>
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      <PayrollTaxesGrp>
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        <ProgramServicesAmt>80892</ProgramServicesAmt>
        <ManagementAndGeneralAmt>6308</ManagementAndGeneralAmt>
        <FundraisingAmt>11846</FundraisingAmt>
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      <FeesForServicesLegalGrp>
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        <ManagementAndGeneralAmt>467</ManagementAndGeneralAmt>
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      <FeesForServicesAccountingGrp>
        <TotalAmt>27868</TotalAmt>
        <ManagementAndGeneralAmt>27868</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>18197</ProgramServicesAmt>
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        <FundraisingAmt>2303</FundraisingAmt>
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        <ProgramServicesAmt>3318</ProgramServicesAmt>
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        <ProgramServicesAmt>22820</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3177</ManagementAndGeneralAmt>
        <FundraisingAmt>2889</FundraisingAmt>
      </TravelGrp>
      <InterestGrp>
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        <ProgramServicesAmt>39649</ProgramServicesAmt>
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      <DepreciationDepletionGrp>
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        <ProgramServicesAmt>6334</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>EDUC. TOURS &amp; SEMINARS</Desc>
        <TotalAmt>382285</TotalAmt>
        <ProgramServicesAmt>382285</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>PROSPECT &amp; MEMBER MAILING</Desc>
        <TotalAmt>287025</TotalAmt>
        <ProgramServicesAmt>205511</ProgramServicesAmt>
        <FundraisingAmt>81514</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>AMER ARCH MAGAZINE</Desc>
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        <ProgramServicesAmt>209915</ProgramServicesAmt>
        <FundraisingAmt>4284</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>EDUC. COMMUNICATIONS</Desc>
        <TotalAmt>125652</TotalAmt>
        <ProgramServicesAmt>53129</ProgramServicesAmt>
        <ManagementAndGeneralAmt>10162</ManagementAndGeneralAmt>
        <FundraisingAmt>62361</FundraisingAmt>
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      <AllOtherExpensesGrp>
        <TotalAmt>395107</TotalAmt>
        <ProgramServicesAmt>300019</ProgramServicesAmt>
        <ManagementAndGeneralAmt>89167</ManagementAndGeneralAmt>
        <FundraisingAmt>5921</FundraisingAmt>
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        <ManagementAndGeneralAmt>309235</ManagementAndGeneralAmt>
        <FundraisingAmt>323524</FundraisingAmt>
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        <BOYAmt>1461628</BOYAmt>
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      <SavingsAndTempCashInvstGrp>
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        <EOYAmt>111891</EOYAmt>
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        <BOYAmt>359984</BOYAmt>
        <EOYAmt>351966</EOYAmt>
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        <EOYAmt>25636</EOYAmt>
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        <BOYAmt>431598</BOYAmt>
        <EOYAmt>457062</EOYAmt>
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      <TotalLiabilitiesGrp>
        <BOYAmt>1218251</BOYAmt>
        <EOYAmt>1663294</EOYAmt>
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      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
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        <EOYAmt>38733911</EOYAmt>
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        <EOYAmt>951867</EOYAmt>
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        <BOYAmt>39570032</BOYAmt>
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        <EOYAmt>41764401</EOYAmt>
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      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
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        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
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      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
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    <IRS990ScheduleA documentId="RetDoc8">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>2985477</CurrentTaxYearMinus4YearsAmt>
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        <CurrentTaxYearMinus2YearsAmt>4515627</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3984062</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3087050</CurrentTaxYearAmt>
        <TotalAmt>17499519</TotalAmt>
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      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>2985477</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>2927303</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>4515627</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3984062</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3087050</CurrentTaxYearAmt>
        <TotalAmt>17499519</TotalAmt>
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      <SubstantialContributorsTotAmt>4827983</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>12671536</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>310843</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>334017</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>88884</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>189148</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>20519</CurrentTaxYearAmt>
        <TotalAmt>943411</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>18442930</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>632145</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.68710</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.67840</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
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    <IRS990ScheduleB documentId="RetDoc1">
      <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>
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        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
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    <IRS990ScheduleD documentId="RetDoc4">
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      <TotalEasementsCnt>12</TotalEasementsCnt>
      <TotalAcreageCnt>417.00</TotalAcreageCnt>
      <StatesEasementsHeldCnt>8</StatesEasementsHeldCnt>
      <WrittenPolicyMonitoringInd>false</WrittenPolicyMonitoringInd>
      <StaffHoursSpentEnforcementCnt>85.00</StaffHoursSpentEnforcementCnt>
      <CYEndwmtFundGrp>
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        <InvestmentEarningsOrLossesAmt>-10023</InvestmentEarningsOrLossesAmt>
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        <EndYearBalanceAmt>1026469</EndYearBalanceAmt>
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      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>1023727</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>112541</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>46851</OtherExpendituresAmt>
        <EndYearBalanceAmt>1084417</EndYearBalanceAmt>
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        <BeginningYearBalanceAmt>1017428</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>112570</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>106271</OtherExpendituresAmt>
        <EndYearBalanceAmt>1023727</EndYearBalanceAmt>
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        <BeginningYearBalanceAmt>1230647</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>151925</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>365144</OtherExpendituresAmt>
        <EndYearBalanceAmt>1017428</EndYearBalanceAmt>
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      <CYMinus4YrEndwmtFundGrp>
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        <EndYearBalanceAmt>1230647</EndYearBalanceAmt>
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      <PrmnntEndowmentBalanceEOYPct>0.07000</PrmnntEndowmentBalanceEOYPct>
      <TermEndowmentBalanceEOYPct>0.93000</TermEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>false</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>false</EndowmentsHeldRelatedOrgInd>
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      <EquipmentGrp>
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      <OtherLandBuildingsGrp>
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      <TotalBookValueLandBuildingsAmt>351966</TotalBookValueLandBuildingsAmt>
      <OtherAssetsOrgGrp>
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      <OtherAssetsOrgGrp>
        <Desc>ARCH EASEMENTS HELD FOR CONSERVATION</Desc>
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      <OtherAssetsOrgGrp>
        <Desc>ARCH SITES IN PROCESS OF ACQUISITION</Desc>
        <BookValueAmt>84139</BookValueAmt>
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      <OtherLiabilitiesOrgGrp>
        <Desc>CHARITABLE GIFT ANNUITY OBLIGATIONS</Desc>
        <Amt>264160</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>ACCRUED PAYROLL AND RELATED LIABILIT</Desc>
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      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>DEPOSIT HELD-SALE OF ARCH SITE</Desc>
        <Amt>30000</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>ACCRUED INTEREST</Desc>
        <Amt>8048</Amt>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <NetUnrealizedGainsInvstAmt>80864</NetUnrealizedGainsInvstAmt>
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      <TotExpnsEtcAuditedFinclStmtAmt>3109534</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>3109534</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>3109534</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 1, PART II, LINE 9</FormAndLineReferenceDesc>
        <ExplanationTxt>EASEMENTS ARE RECORDED IN THE FINANCIAL STATEMENTS AT COST IF PURCHASED OR AT FAIR MARKET VALUE AT THE DATE OF ACQUISITION IF ALL OR PART OF THE EASEMENT WAS RECEIVED AS A DONATION. FAIR MARKET VALUE IS DETERMINED BY APPRAISAL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 2, PART V, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PERMANENT ENDOWMENT WAS CREATED TO PROVIDE SUPPORT FOR THE GENERAL OPERATING NEEDS OF THE CONSERVANCY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 3, PART X</FormAndLineReferenceDesc>
        <ExplanationTxt>MANAGEMENT HAS EVALUATED THE CONSERVANCY'S TAX POSITIONS AND CONCLUDED THAT THE CONSERVANCY HAS TAKEN NO UNCERTAIN TAX POSITIONS THAT REQUIRE ADJUSTMENT OR DISCLOSURE TO THE FINANCIAL STATEMENTS TO COMPLY WITH THE PROVISIONS OF ACCOUNTING GUIDANCE FOR INCOME TAXES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="RetDoc5">
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <Form990OfOtherOrganizationsInd>X</Form990OfOtherOrganizationsInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>false</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARK P MICHEL</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
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        <DeferredCompensationFlngOrgAmt>12875</DeferredCompensationFlngOrgAmt>
        <TotalCompensationFilingOrgAmt>175308</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleM documentId="RetDoc6">
      <SecuritiesPubliclyTradedGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>3</ContributionCnt>
        <NoncashContributionsRptF990Amt>18807</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>MARKET PRICE</MethodOfDeterminingRevenuesTxt>
      </SecuritiesPubliclyTradedGrp>
      <RealEstateOtherGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>8</ContributionCnt>
        <NoncashContributionsRptF990Amt>738593</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>APPRAISAL</MethodOfDeterminingRevenuesTxt>
      </RealEstateOtherGrp>
      <AnyPropertyThatMustBeHeldInd>false</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>true</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>false</ThirdPartiesUsedInd>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc7">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>TO ACQUIRE AND PRESERVE AMERICA'S MOST IMPORTANT ARCHAEOLOGICAL SITES. THE CONSERVANCY IDENTIFIES IMPORTANT ENDANGERED SITES, ACQUIRES THE PROPERTY BY PURCHASE, GIFT OR BARGAIN SALE FROM DONORS, SECURES THE PROPERTY AND STABILIZES THE CULTURAL RESOURCES AT THE SITE, MANAGES THE ARCHAEOLOGICAL PRESERVE AS PART OF A LONG-TERM PLAN, AND EDUCATES THE GENERAL PUBLIC AND LOCAL OFFICIALS ABOUT THE DESTRUCTION OF OUR CULTURAL HERITAGE AND HOW TO PRESERVE WHAT REMAINS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CONSERVANCY'S FORM 990 IS REVIEWED BY THE PRESIDENT AND THE CHIEF FINANCIAL OFFICER PRIOR TO FILING WITH THE IRS. AT THE TIME IT IS FILED, A FINAL COPY IS PROVIDED TO EACH MEMBER OF THE BOARD OF DIRECTORS. THE FINANCE COMMITTEE OF THE BOARD OF DIRECTORS THEN REVIEWS AND DISCUSSES THE FORM 990 AND MAKES ITS RECOMMENDATIONS TO THE FULL BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>EMPLOYEES, OFFICERS AND DIRECTORS ARE REQUIRED TO DISCLOSE ANY POTENTIAL CONFLICT OF INTEREST AT THE TIME IT MAY OCCUR TO THE PRESIDENT OF THE CONSERVANCY. ALL PAYMENTS MADE DURING THE COURSE OF EACH YEAR ARE MONITORED BY THE PRESIDENT AND CHIEF FINANCIAL OFFICER FOR POTENTIAL CONFLICTS OF INTEREST. THERE HAS NEVER BEEN AN ALLEGATION OF A CONFLICT OF INTEREST SITUATION IN THE HISTORY OF THE CONSERVANCY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION FOR THE PRESIDENT IS SET EACH YEAR BY THE FULL BOARD OF DIRECTORS. A COMPENSATION COMMITTEE FIRST ASSEMBLES A LIST OF COMPENSATION DATA FROM 14 ORGANIZATIONS THAT ARE FELT TO BE CLOSELY SIMILAR TO THE CONSERVANCY. THE COMPENSATION DATA IS BASED ON IRS 990 REPORTS AVAILABLE AND THEN ADJUSTED FOR INFLATION AND GEOGRAPHICAL REGION. THE PRESIDENT'S ACHIEVEMENTS ARE THEN EVALUATED BY THE COMMITTEE AND A RECOMMENDATION IS MADE FOR APPROVAL BY THE FULL BOARD AS PART OF THE BUDGET PROCESS. THE CONSIDERATIONS ARE DOCUMENT IN DETAIL IN THE MINUTES FROM THE SESSION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15B</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION FOR OFFICERS OR OTHER KEY EMPLOYEES IS RECOMMENDED BY THE PRESIDENT TO THE BOARD OF DIRECTORS BASED ON INDIVIDUAL JOB PERFORMANCE MEASURES, EMPLOYEE EXPERIENCE AND PREVAILING WAGES IN THE AREA. THE SALARIES ARE APPROVED BY THE FULL BOARD OF DIRETORS AS PART OF THE ANNUAL BUDGET PROCESS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CONSERVANCY'S FORM 990, AUDIT SUMMARY, AND OTHER ORGANIZATION INFORMATION IS AVAILABLE ON ITS WEBSITE: WWW.ARCHAEOLOGICALCONSERANCY.ORG. FORM 990 IS ALSO AVAILABLE ON GUIDESTAR, CHARITY NAVIGATOR, THE BETTER BUSINESS BUREAU, AND OTHER PUBLIC SITES. THE GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS MAY ALSO BE OBTAINED ON REQUEST AT THE CONSERVANCY HEADQUARTERS, 1717 GIRARD BLVD NE, ALBUQUERQUE, NM 87106.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 24E</FormAndLineReferenceDesc>
        <ExplanationTxt>REGIONAL OFFICE EXPENSES 111,597 3,488 1,163 MAINTENANCE OF ACRH SITES 92,112 0 0 TAXES &amp; LEGAL ARCH SITES 87,234 0 0 CHNG IN VALUE SPLIT INT 0 69,823 0 BOARD EXPENSES 0 5,884 3,923 AMORTIZ -ANNUITY DISCOUNT 0 9,055 0 TELEPHONE 6,587 917 835 OTHER ARCH SITE EXPENSES 2,489 0 0</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>