Manuscripts
The "Twin" cruising on upper Lake Mead in the lower end of Grand Canyon at the end of the traverse of 1951, June. This traverse was the first by outboard motor powered units. It was also the first with aluminum hulls
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The "Sweet Chariot" cruising on upper Lake Mead in the Grand Canyon at the end of the 1951 motor traverse. Cooper is pilot. Taylor facing the camera
Manuscripts
mssMarston papers V099/0054
William Gerritt Cooper skiing on the upper end of Lake Mead after traverse of Marble and Grand Canyon with motor boats
Manuscripts
mssMarston papers V099/0073
Upper left is the upper end of Red Lake Canyon. Lower is the south end of Twin Canyon
Manuscripts
mssMarston papers V007/0107
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Marston Motor Traverse of Grand Canyon - Outboard Motors, Boats
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
