Manuscripts
Running a rapid according to Powell's book: Powell, J. W., "Colorado River of the West", 1875
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The Grand Canyon. Frontispiece of Powells 1875 Report. Illustration on p.378 of "Canyons of the Colorado," J. W. Powell, Meadville, 1895
Manuscripts
mssMarston papers V054/0112

J. W. Powell, first navigator of the Grand Canyon of the Colorado
Manuscripts
mssMarston papers V166/0114
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Colorado River maps related to J.W. Powell
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


