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        <ManagementAndGeneralAmt>18910</ManagementAndGeneralAmt>
        <FundraisingAmt>25214</FundraisingAmt>
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      <CompDisqualPersonsGrp>
        <TotalAmt>0</TotalAmt>
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      <OtherSalariesAndWagesGrp>
        <TotalAmt>750237</TotalAmt>
        <ProgramServicesAmt>652998</ProgramServicesAmt>
        <ManagementAndGeneralAmt>66835</ManagementAndGeneralAmt>
        <FundraisingAmt>30404</FundraisingAmt>
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      <PensionPlanContributionsGrp>
        <TotalAmt>0</TotalAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>43780</TotalAmt>
        <ProgramServicesAmt>36170</ProgramServicesAmt>
        <ManagementAndGeneralAmt>4616</ManagementAndGeneralAmt>
        <FundraisingAmt>2994</FundraisingAmt>
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      <PayrollTaxesGrp>
        <TotalAmt>59166</TotalAmt>
        <ProgramServicesAmt>48882</ProgramServicesAmt>
        <ManagementAndGeneralAmt>6238</ManagementAndGeneralAmt>
        <FundraisingAmt>4046</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesManagementGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>10615</TotalAmt>
        <ManagementAndGeneralAmt>10615</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesLobbyingGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesLobbyingGrp>
      <FeesForServicesProfFundraising>
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      </FeesForServicesProfFundraising>
      <FeesForSrvcInvstMgmntFeesGrp>
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      <OfficeExpensesGrp>
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        <ManagementAndGeneralAmt>1804</ManagementAndGeneralAmt>
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      <InformationTechnologyGrp>
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        <FundraisingAmt>936</FundraisingAmt>
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      <RoyaltiesGrp>
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      <OccupancyGrp>
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        <ProgramServicesAmt>120626</ProgramServicesAmt>
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      <TravelGrp>
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      <PymtTravelEntrtnmntPubOfclGrp>
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      <ConferencesMeetingsGrp>
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      <InterestGrp>
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      <PaymentsToAffiliatesGrp>
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      <DepreciationDepletionGrp>
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        <ProgramServicesAmt>65783</ProgramServicesAmt>
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      <InsuranceGrp>
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        <ProgramServicesAmt>38237</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2031</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
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      <OtherExpensesGrp>
        <Desc>REPAIRS AND MAINTENANCE</Desc>
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        <ProgramServicesAmt>58384</ProgramServicesAmt>
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      <OtherExpensesGrp>
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        <ProgramServicesAmt>36859</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>SUPPLIES</Desc>
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        <ProgramServicesAmt>38362</ProgramServicesAmt>
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        <FundraisingAmt>8114</FundraisingAmt>
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        <ProgramServicesAmt>1291763</ProgramServicesAmt>
        <ManagementAndGeneralAmt>147000</ManagementAndGeneralAmt>
        <FundraisingAmt>95994</FundraisingAmt>
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      <CashNonInterestBearingGrp>
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      <PledgesAndGrantsReceivableGrp>
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      <AccountsReceivableGrp>
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      <ReceivablesFromOfficersEtcGrp>
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      <RcvblFromDisqualifiedPrsnGrp>
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        <EOYAmt>11533</EOYAmt>
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      <InvestmentsPubTradedSecGrp>
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      <MortgNotesPyblScrdInvstPropGrp>
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      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
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      <DonorRestrictionNetAssetsGrp>
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        <EOYAmt>510808</EOYAmt>
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        <EOYAmt>1310686</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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      <ReconcilationRevenueExpnssAmt>-53343</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>-37041</NetUnrlzdGainsLossesInvstAmt>
      <InvestmentExpenseAmt>-2905</InvestmentExpenseAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
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      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
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        <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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      <TotalAcreageCnt>17</TotalAcreageCnt>
      <StatesEasementsHeldCnt>1</StatesEasementsHeldCnt>
      <WrittenPolicyMonitoringInd>true</WrittenPolicyMonitoringInd>
      <Section170hRqrStsfdInd>false</Section170hRqrStsfdInd>
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        <ContributionsAmt>25793</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>-35084</InvestmentEarningsOrLossesAmt>
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        <InvestmentEarningsOrLossesAmt>46343</InvestmentEarningsOrLossesAmt>
        <AdministrativeExpensesAmt>3895</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>324219</EndYearBalanceAmt>
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        <AdministrativeExpensesAmt>2420</AdministrativeExpensesAmt>
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        <EndYearBalanceAmt>200000</EndYearBalanceAmt>
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      <EquipmentGrp>
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      <OtherAssetsOrgGrp>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <NetUnrealizedGainsInvstAmt>-37041</NetUnrealizedGainsInvstAmt>
      <OtherRevenueAmt>94263</OtherRevenueAmt>
      <RevenueNotReportedAmt>57222</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>1478509</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>2905</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>2905</RevenueNotReportedFinclStmtAmt>
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      <TotExpnsEtcAuditedFinclStmtAmt>1629020</TotExpnsEtcAuditedFinclStmtAmt>
      <OtherExpensesIncludedAmt>94263</OtherExpensesIncludedAmt>
      <ExpensesNotReportedAmt>94263</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>1534757</ExpensesSubtotalAmt>
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        <FormAndLineReferenceDesc>Part II, Line 5: Summarized Policy</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EASEMENT IS PROTECTED BY THE NATURE CONSERVANCY. THE NATURE CONSERVANCY PERFORMS ANNUAL SITE VISITS TO CONFIRM THAT ECHO HILL OUTDOOR SCHOOL IS IN COMPLIANCE WITH THE TERMS OF THE AGREEMENT.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part II, Line 9: Organization Reporting of conservation easements.</FormAndLineReferenceDesc>
        <ExplanationTxt>IN 1981, THE NATURE CONSERVANCY DONATED 172 ACRES OF NON-TIDAL WETLAND PROPERTY TO THE SCHOOL TO BE PRESERVED IN ITS NATURAL STATE. THE LAND IS ADJACENT TO FARMLAND LEASED BY THE SCHOOL. THE LAND VALUE IS NOT REPORTED ON THE FINANCIAL STATEMENTS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part V, Line 4: Intended uses of the endowment fund.</FormAndLineReferenceDesc>
        <ExplanationTxt>ENDOWMENT FUND WAS ESTABLISHED TO PROVIDE SCHOLARSHIP FUNDS. INVESTMENT POLICY ADOPTED BY THE BOARD ALLOWS THE ORGANIZATION TO SPEND UP TO 5% OF THE ASSET VALUE ANNUALLY.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X : FIN48 Footnote</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS DOCUMENTED ITS CONSIDERATION OF FASB 740-10, INCOME TAXES, THAT PROVIDES GUIDANCE FOR REPORTING UNCERTAINTY IN INCOME TAXES AND HAS DETERMINED THAT NO MATERIAL UNCERTAIN TAX POSITIONS EXIST THAT QUALIFY FOR EITHER RECOGNITION OR DISCLOSURE IN THE FINANCIAL STATEMENTS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XI, Line 2d: Other revenue amounts included in F/S but not included on form 990</FormAndLineReferenceDesc>
        <ExplanationTxt>COST OF SALES $7469 EVENT EXPENSES $86794</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XII, Line 2d: Other expenses and losses per audited F/S</FormAndLineReferenceDesc>
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      <PlcyPblczdViaBroadcastMediaInd>true</PlcyPblczdViaBroadcastMediaInd>
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      <MaintainCpyOfBrochuresEtcInd>true</MaintainCpyOfBrochuresEtcInd>
      <MaintainCpyOfAllSolInd>true</MaintainCpyOfAllSolInd>
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      <DiscriminateRaceAdmissPlcyInd>false</DiscriminateRaceAdmissPlcyInd>
      <DiscriminateRaceEmplmFcultyInd>false</DiscriminateRaceEmplmFcultyInd>
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      <DiscriminateRaceEducPlcyInd>false</DiscriminateRaceEducPlcyInd>
      <DiscriminateRaceUseOfFcltsInd>false</DiscriminateRaceUseOfFcltsInd>
      <DiscriminateRaceAthltProgInd>false</DiscriminateRaceAthltProgInd>
      <DiscriminateRaceOtherActyInd>false</DiscriminateRaceOtherActyInd>
      <GovernmentFinancialAidRcvdInd>true</GovernmentFinancialAidRcvdInd>
      <GovernmentFinancialAidRvkdInd>false</GovernmentFinancialAidRvkdInd>
      <ComplianceWithRevProc7550Ind>true</ComplianceWithRevProc7550Ind>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule E, Line 3 - Racially Nondiscriminatory Policy Publicized</FormAndLineReferenceDesc>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule E, Line 4 - Explanation of Records and Materials Not Maintained</FormAndLineReferenceDesc>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule E, Line 5 - Explanation of Organization Discrimination by Race</FormAndLineReferenceDesc>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule E, Line 6 - Explanation of Aid or Assistance from Governmental Agency</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SCHOOL IS A STATE-AIDED INSTITUTION WITH THE MARYLAND DEPARTMENT OF EDUCATION AND AS SUCH, RECEIVES AN ANNUAL GRANT FOR MARYLAND PUBLIC AND PRIVATE SCHOOL PROGRAMS. ECHO HILL OUTDOOR SCHOOL USES THE GRANT FOR TUITION ASSISTANCE AND OUTDOOR SCHOOL STAFF SALARIES. A MINIMUM OF 80% OF THE FUNDS MUST BE USED FOR PUBLIC SCHOOL PROGRAMS, WITH AN EMPHASIS ON TITLE 1 SCHOOLS.</ExplanationTxt>
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      <SolicitationOfGovtGrantsInd>X</SolicitationOfGovtGrantsInd>
      <SpecialFundraisingEventsInd>X</SpecialFundraisingEventsInd>
      <AgrmtProfFundraisingActyInd>false</AgrmtProfFundraisingActyInd>
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        <Event1Nm>50TH ANNIVERSARY CELEBRATION</Event1Nm>
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        <CharitableContriEvent1Amt>92007</CharitableContriEvent1Amt>
        <GrossRevenueEvent1Amt>45080</GrossRevenueEvent1Amt>
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        <EntertainmentEvent1Amt>4375</EntertainmentEvent1Amt>
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        <GrossReceiptsTotalAmt>137087</GrossReceiptsTotalAmt>
        <CharitableContributionsTotAmt>92007</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>45080</GrossRevenueTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>24816</FoodAndBeverageTotalEventsAmt>
        <EntertainmentTotalEventsAmt>4375</EntertainmentTotalEventsAmt>
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        <DirectExpenseSummaryEventsAmt>86794</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>-41714</NetIncomeSummaryAmt>
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        <Desc>EVENT SUPPLIES</Desc>
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        <MethodOfDeterminingRevenuesTxt>COMPARABLE SALES</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>AUCTION ITEMS</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>6800</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COMPARABLE SALES</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>AUCTION ITEMS</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>6300</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COMPARABLE SALES</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <Desc>CAMP SUPPLIES</Desc>
        <ContributionCnt>3</ContributionCnt>
        <NoncashContributionsRptF990Amt>650</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COMP. SALES</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <Desc>AUCTION ITEMS</Desc>
        <ContributionCnt>44</ContributionCnt>
        <NoncashContributionsRptF990Amt>12875</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COMP. SALES</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <Desc>EVENT SUPPLIES</Desc>
        <ContributionCnt>6</ContributionCnt>
        <NoncashContributionsRptF990Amt>5000</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COMP. SALES</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <AnyPropertyThatMustBeHeldInd>false</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>false</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>false</ThirdPartiesUsedInd>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="22015553" softwareVersionNum="2022v5.0">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE DIRECTOR AND THE TREASURER ARE SIBLINGS AND THE BOARD PRESIDENT AND ONE OF THE OTHER BOARD MEMBERS ARE IN-LAWS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM IS PREPARED BY A CERTIFIED PUBLIC ACCOUNTANT AND REVIEWED BY THE BUSINESS MANAGER AND BOARD OFFICERS AND DIRECTORS PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>EACH YEAR, ALL DIRECTORS AND OFFICERS ARE REQUIRED TO READ THE CONFLICT OF INTEREST POLICY AND DISCLOSE ANY POTENTIAL CONFLICTS OF INTEREST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPENSATION IS REVIEWED AND DETERMINED ANNUALLY BY THE ORGANIZATION'S GOVERNING BODY. THE REVIEW AND APPROVAL PROCESS CONSISTS OF PERFORMANCE EVALUATION, AS WELL AS CONSIDERATION OF AVAILABLE DATA ON COMPENSATION PAID BY SIMILAR ORGANIZATIONS IN THE GEOGRAPHIC AREA.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES REQUIRED DOCUMENTS AVAILABLE UPON REQUEST, IN ACCORDANCE WITH IRS REGULATIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
