Manuscripts
Horsethief C. - 1965 - Yaks, May [Belknap house, Boulder City; Mt. Emma; Whitmore Trail;; skiyak trip through lower Grand Canyon from Whitmore Rapid to Lake Mead; trip into Roost Canyon, Angels trail, Dirty Devil River.] (337 slides)
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Roost - Horsethief Trail
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
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Horsethief Trail, left bank; Horsethief Spring; Horsethief Ranch
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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Nankoweap Creek; Horsethief Trail - Mile 52-53
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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Robbers Roost; Robbers Roost Ranch; Roost Country
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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Belknap, Marston - Cataract Canyon Personnel
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