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        <CurrentTaxYearMinus2YearsAmt>20936</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>66388</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>17702</CurrentTaxYearAmt>
        <TotalAmt>134308</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>13634</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>15648</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>20936</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>66388</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>17702</CurrentTaxYearAmt>
        <TotalAmt>134308</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>134308</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>1247</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>1070</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>598</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>413</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2505</CurrentTaxYearAmt>
        <TotalAmt>5833</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>140141</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>5574</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.95840</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.96780</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleD documentId="RetDoc2">
      <PreservationPublicUseInd>X</PreservationPublicUseInd>
      <ProtectionNaturalHabitatInd>X</ProtectionNaturalHabitatInd>
      <PreservationOpenSpaceInd>X</PreservationOpenSpaceInd>
      <TotalEasementsCnt>33</TotalEasementsCnt>
      <TotalAcreageCnt>748.00</TotalAcreageCnt>
      <StatesEasementsHeldCnt>1</StatesEasementsHeldCnt>
      <WrittenPolicyMonitoringInd>false</WrittenPolicyMonitoringInd>
      <StaffHoursSpentEnforcementCnt>40.00</StaffHoursSpentEnforcementCnt>
      <Section170hRqrStsfdInd>false</Section170hRqrStsfdInd>
      <LandGrp>
        <OtherCostOrOtherBasisAmt>399961</OtherCostOrOtherBasisAmt>
        <BookValueAmt>399961</BookValueAmt>
      </LandGrp>
      <TotalBookValueLandBuildingsAmt>399961</TotalBookValueLandBuildingsAmt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 1, PART II, LINE 9</FormAndLineReferenceDesc>
        <ExplanationTxt>CONSERVATION EASEMENT COSTS ARE EXPENSED AS INCURRED.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="RetDoc3">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>THE TRUST IS A NON-PROFIT ORGANIZATION INCORPORATED IN 1984 UNDER THE MASSACHUSETTS LAW FOR THE PURPOSE OF PRESERVING OPEN LAND, WATER RESOURCES, WILDLIFE AND OTHER NATURAL RESOURCES; TO ESTABLISH AND MAINTAIN TRAILS; TO PRESERVE AND PROTECT HISTORIC STIES; AND TO EDUCATE THE PUBLIC ABOUT THE WISE USE OF NATURAL RESOURCES. AT PRESENT, MEMBERSHIP CONSISTS OF THOSE WHO ARE INTERESTED IN THE PROTECTION OF OPEN SPACE IN WESTFORD, MASSACHUSETTS. THE TRUSTS HOLDS NUMEROUS PARCELS OF LAND FOR THE BENEFIT OF WESTFORDS CITIZENS AND WILDLIFE, AND IS INVOLVED WITH THE CARE AND MAINTENANCE OF MANY OF THE MORE THAN 75 MILES OF TRAILS IN THE TOWN OF WESTFORD. WE ALSO PROVIDE MONTHLY GUIDED WALKS, ARE INVOLVED IN INVASIVE SPECIES MANAGEMENT, SCOUT PROJECT MENTORING AND SPONSORING HIGH SCHOOL AND COLLEGE SCHOLARSHIPS. WE SPONSOR THE WESTFORD WILDLIFE WATCH COLUMN, PRINTED MONTHLY ON THE WESTFORD CONSERVATION TRUST WEBSITE. WE WORK WITH THE TOWN GOVERNMENT TO HELP SECURE OPEN SPACE INITIATIVES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE 990 IS PROVIDED TO THE BOARD OF DIRECTORS FOR REVIEW BEFORE FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>NO DOCUMENTS AVAILABLE TO THE PUBLIC</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
