1899
Cram, George Franklin, 1841-1928
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1871
Hergesheimer, E.
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1878
U.S. Geological and Geographical Survey of the Territories
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1878
Bechler, G.R. ; Clark, Fred A.
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1872
Hayden, F.V.
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U.S. Geological and Geographical Survey of the Territories
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1991
Mora, Jo (1876-1947)
1875
Ludlow, William
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1991
Mora, Jo (1876-1947)
1881
Heubach, Emil
1:750k