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Manuscripts

Gass Monument, right bank (Mile 263.9) - Mile 263-264


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    Gass Monument, left bank (Mile 260.3) - Mile 260-261

    Manuscripts

    Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.

    mssMarston papers

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    Helldiver Rapid - Mile 264-265

    Manuscripts

    Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.

    mssMarston papers

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    Whirlwind Draw, right bank (Mile 62.7) - Mile 62-63

    Manuscripts

    Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.

    mssMarston papers

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    California Bar, left bank; Sundog Bar, right bank - Mile 131-132

    Manuscripts

    Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.

    mssMarston papers

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    Gass, Patrick

    Manuscripts

    Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.

    mssMarston papers

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    Horsethief Canyon; Horsethief Trail, right bank - Mile 44-45

    Manuscripts

    Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.

    mssMarston papers