Books about Powell, John Wesley, 1834-1902
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Canyon Voyage : The Narrative of the Second Powell Expedition down the Green-Colorado River from Wyoming, and the Explorations on Land, in the Years 1871 and 1872
Frederick Samuel Dellenbaugh
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Romance of the Colorado River : The Story of its Discovery in 1840, with an Account of the Later Explorations, and with Special Reference to the Voyages of Powell through the Line of the Great Canyons
Frederick Samuel Dellenbaugh
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