North-western Colorado and part of Utah.

North-western Colorado and part of Utah. U.S. Geological and Geographical Survey of the Territories. F.V. Hayden in Charge. A.R. Marvine, A.C. Peale, E.M. Endlich, and C.A. White, Geological Assistants. Surveyed in 1874 & '76. Sheet XI.

Hayden, F.V.

1881

1881

Department of The Interior. United States Geological and Geographical Surveys of the Territories.

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