concept

Exploration of the Colorado River of the West and its tributaries : explored in 1869, 1870, 1871, and 1872, under the direction of the Secretary of the Smithsonian Institution.

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Almon Harris Thompson

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Exploration of the Colorado River of the West and its tributaries : explored in 1869, 1870, 1871, and 1872, under the direction of the Secretary of the Smithsonian Institution.