Manuscripts
Granite Falls [illustration in "Canyons of the Colorado," J. W. Powell, Meadville, 1895]
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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
