General Geological Map of Colorado. Department of the Interior, U.S. Geological and Geographical Survey of the Territories, F.V. Hayden, U.S. Geologist in Charge. Surveyed in 1873, '74, '75 & '76. Sheet IV.
Depicted date
1881
Publication date
1881
Creator
Hayden, F.V.
Publisher
Department of The Interior. United States Geological and Geographical Surveys of the Territories.