Manuscripts
Probably in area of Mile 75. The boats are overloaded. McDonald is at the sweep at left
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The three boats in upper Marble Canyon. Steersman in foreground is probably McDonald
Manuscripts
mssMarston papers V183/0030
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Mile 75-76
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



