Hayden Maps of 1877 | Colorado Geological Survey

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Hayden Maps of 1877

The following six maps are available from the CGS Bookstore as free PDF downloads. Map scale is approximately 1:253,400.

Geologic Map of Colorado by the Hayden Survey of 1877
Geologic Map of Southwest Colorado by the Hayden Survey of 1877
Geologic Map of North-central Colorado by the Hayden Survey of 1877
Geologic Map of Northwest Colorado by the Hayden Survey of 1877
Geologic Map of Western Colorado by the Hayden Survey of 1877
Geologic Map of Central Colorado by the Hayden Survey of 1877

Composite of Hayden’s 1:253,440 geologic maps