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      <Desc>Completed purchase of Bald Hill Summit, a 58.31 acre hilltop parcel in Ross, California, contiguous with the existing Bald Hill Open Space Preserve which is held by the County of Marin. The County and communities of Ross and San Anselmo, California also participated in the purchase. The property has been a priority for open space acquisition by the County and the neighboring communities for about four decades.</Desc>
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        <Desc>Continued fundraising toward acquisition of a 9.6 acre upslope parcel in San Anselmo, California that is contiguous with the existing 22 acre San Anselmo Hawthorne Canyon Open Space Preserve. If acquired, the parcel would become part of the preserve.</Desc>
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        <Desc>Initiated an effort to purchase 100 acres of undeveloped land in Fairfax, California that the Town of Fairfax wants to preserve as open space and for public recreation. A 10 year effort to develop the property had failed, with the property going on the open market in 2023. The property has steep hillsides and major expanses of oak and bay woodland, and has historic trails that link with an existing public trail network.</Desc>
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      <WrittenPolicyMonitoringInd>1</WrittenPolicyMonitoringInd>
      <StaffHoursSpentEnforcementCnt>30.00</StaffHoursSpentEnforcementCnt>
      <ExpensesIncurredEnforcementAmt>2466</ExpensesIncurredEnforcementAmt>
      <Section170hRqrStsfdInd>1</Section170hRqrStsfdInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule D, Part II, Line 5</FormAndLineReferenceDesc>
        <ExplanationTxt>Schedule D, Part II, line 5. Marin Open Space Trust has adopted policies including many that are based on Land Trust Alliance recommendations. Policies regard monitoring and inspection, baseline preparation, maintaining stewardship records, amendments and procedures to amend, enforcement, stewardship funding, and hazardous materials.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule D, Part II, Line 9</FormAndLineReferenceDesc>
        <ExplanationTxt>Schedule D, Part II, Line 9. Expenses for monitoring and enforcing conservation easements are recorded along with all other expenses. Expenses for two easements are paid from the organization's operating account. The third easement was purchased with funding from the State of California, and separate accounting for this easement is a requirement of the grant, so a separate bank account is maintained for this easement. Marin Open Space Trust places no value on these easements as they have no associated value. This is based on the purpose of the easements to preserve and protect conservation values of the properties as wildlife habitat and open space, and to prevent uses that would negate these conservation values.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="R000005" softwareId="23018249" softwareVersionNum="v1.00">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The draft 990 tax returns are provided to all board members for two weeks for their review, prior to submitting to the IRS</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Board members would report any conflict to the board when an issue is before the board for action, but there have not been any incidents of this nature</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>All policies or governing documents are available to members of the public on request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, Line 11g</FormAndLineReferenceDesc>
        <ExplanationTxt>Geotechnical surveys and reports $12035 Trail repair on open space lands 17879 Monitoring for three conservation easements $2465.80 Property appraisal $2000 conservation realty broker 1420</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, Line 9</FormAndLineReferenceDesc>
        <ExplanationTxt>1507 was entered in the 2022 return as an expense and also as a liability. It was an account payable and should not have been included as an expense for 2022, but was paid in 2023 351 was a non cash contribution for facility use and snacks</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule B, Part I</FormAndLineReferenceDesc>
        <ExplanationTxt>Marin Open Space Trust also received one $5000 donation that was given anonymously; and one $5000 donation for which there is a name but no contact information.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
