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        <Desc>Sierra Nevada ProgramTo support recovery from the massive Rim Fire, which burned 257,000 acres of forested watershed lands, we organized over 1,200 volunteers to help plant 20,000 trees on 100 acres, restore 5 miles of trail, pull noxious weeds on 60 acres of land, and other activities. We also raised funds and completed plans to begin a suite of restoration actions in the burned area, including 13 meadows, 7 springs, 950 acres of deer habitat restoration, install 23 Great Gray Owl Nest Structures, restore 32 acres of aspen stands, install 2 wildlife guzzlers and 20 wildlife-friendly troughs. We have also given watershed education presentations to 2,200 students and 1,000 members of the general public. We also significantly shaped the States Tree Mortality Task Force and Forest Climate Plan to consider negative impacts to carbon sequestration due to unhealthy forests and a need for greater emphasis on forest restoration. We also co-chair the Yosemite Stanislaus Solutions forest restoration collaborative, which is dedicated to restoring forest health, meadows, streams, and wildlife habitat in the headwaters of the Tuolumne watershed.</Desc>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part II, Line 5: Summarized Policy</FormAndLineReferenceDesc>
        <ExplanationTxt>The Tuolumne River Trust monitors its conservation easements at least annually in order to observe the condition of the property to determine whether it is in compliance with easement terms, create a record of easement stewardship and property condition over time, and maintain a working relationship with the landowner. It is TRTs policy to uphold its conservation easements as written and to identify, investigate, evaluate and respond to any potential violations as quickly as possible. In the case of a material violation, TRT will require cessation, repair, and/or mitigation of any damage to protected conservation values. TRT is prepared to take legal action to defend its rights as easement holder if necessary. TRTs policy clearly describes the process for enforcing the terms of the easement should any violation be identified to ensure corrective actions are taken to cure the violation.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part II, Line 9: Organization Reporting of conservation easements.</FormAndLineReferenceDesc>
        <ExplanationTxt>Easements acquired by the Organization are conservation easements and include restrictions over the use of land which is not owned by the Organization. By accepting such conservation easements the Organization becomes responsible for certain costs related to monitoring and enforcing the easements. The Organization recognizes a contingent liability related to such easements. The footnote describing these obligations and easements in the Organizations financials is as follows:As of December 31, 20167 conservation easements managed by the Organization consisted of the following: Dos Rios Ranch: Approximately 1,603 acres near the Tuolumne River located in Stanislaus County, California. Hidden Valley Ranch: Approximately 497 acres near the Tuolumne River located in Stanislaus County, California. The Organization has a fiduciary responsibility to preserve the conservation easements, and this responsibility may result in future costs to the Organization for monitoring, management or enforcement of the terms of the related easements. The amount of such future costs is uncertain and depends on factors such as the existence, if any, of violations of the conservation easements in the period in which such costs are incurred.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X : FIN48 Footnote</FormAndLineReferenceDesc>
        <ExplanationTxt>The Organization has evaluated its current tax positions as of December 31, 2017 and is not aware of any significant uncertain tax positions for which a reserve would be necessary.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, Line 3: Ceased Conducting or Significant Changes To Services</FormAndLineReferenceDesc>
        <ExplanationTxt>We did not conduct our Paddle to the Sea or By Land or By River programs.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, Line 4d: Other Program Services Description</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER PROGRAM SERVICES 4: Fiscal ProjectsThe organization is the fiscal sponsor of the Airport Neighborhood Collaborative (ANC), a coalition of groups, community members and persons residing or involved in the Modesto Airport Neighborhood and to Operation 9299, a collaborative project funded by the Sylvan Improvement Club. We also act as the fiscal sponsor for the Merals Pool whitewater put-in.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11b: Form 990 Review Process</FormAndLineReferenceDesc>
        <ExplanationTxt>For review first to Finance Director, then Executive Director then approval granted by Treasurer.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12c: Explanation of Monitoring and Enforcement of Conflicts</FormAndLineReferenceDesc>
        <ExplanationTxt>To ensure TRT operates in a manner consistent with charitable purposes and does not engage in activities that could jeopardize its tax-exempt status, periodic reviews are conducted. The periodic reviews, at a minimum, include the following subjects:a. Whether compensation arrangements and benefits are reasonable, based on competent survey information, and the result of arm's length bargaining.b. Whether partnerships, joint ventures, and arrangements with management organizations conform to TRT's written policies, are properly recorded, reflect reasonable investment or payments for goods and services, further charitable purposes and do not result in inurnment, impermissible private benefit or in an excess benefit transaction.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19: Other Organization Documents Publicly Available</FormAndLineReferenceDesc>
        <ExplanationTxt>All such documents are available upon request. Financial statements are also included in our Annual Report.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>