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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
1877
Parts of Western Wyoming, So …
Hayden, F.V.; U.S. Geologica …
5943.000
1878
Geological Map of Portions o …
Hayden,Ferdinand Vandeveer; …
5948.000