Manuscripts
The Yak party meets a hiking party which Kent Frost had brot down Y Canyon
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Kent Frost's jeep party looking down on the rapid at Mile 184 in Cataract Canyon
Manuscripts
mssMarston papers V016/0143
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Grand Canyon: hiking
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



