Manuscripts
Gass Monument, left bank (Mile 260.3) - Mile 260-261
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Gass Monument, right bank (Mile 263.9) - Mile 263-264
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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Moon Bottom; ruin, left bank of Green - Mile 109-110
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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California Bar, left bank; Beaver Canyon; Mile 130.1, Little Ball Canyon? - Mile 130-131
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, Octavius Decatur
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