North-western Colorado and p
1881
Hayden, F.V.
4576.012
|
Northern Central Colorado.
1881
Hayden, F.V.
4576.013
|
Central Colorado.
1881
Hayden, F.V.
4576.014
|
Western Colorado and Part of
1881
Hayden, F.V.
4576.015
|
Composite: Colorado. XI-XVI.
1881
Hayden, F.V.
4576.018
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1877
Parts of Western Wyoming, So
Hayden, F.V.; U.S. Geologica
5943.000
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1878
Geological Map of Portions o
Hayden,Ferdinand Vandeveer;
5948.000
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