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A 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
A 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