Showing The Plains Across: The Overland Emigrants and the Trans-Mississippi West, 1840-60 by John D. Unruh
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Important places
Fort Vancouver (1)Fort Hall (3)
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Clark (18)Bannock (11)
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Idaho (520)Washington (1,134)
Nebraska (466)
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United States (64,950)Other geographical areas
Columbia Plateau (47)Rocky Mountains (370)
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Great Plains (2,255)