U.S. Geological Survey Geologic Investigations Series I-2639
Historic Trail Map of the Denver 1º x 2º Quadrangle, Central Colorado
By Glenn R. Scott
This map is presented in three parts, in Portable Document Format.
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Map of Entire Quadrangle (23-MB PDF file)
Enlarged Map of Northwest Quarter (35-MB PDF file)
Explanatory Pamphlet (18-MB PDF file)