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Author
Hayden, F.V.
Full Title
Economic Map of Colorado. Department of the Interior, U.S. Geological and Geographical Survey of the Territories, F.V. Hayden, U.S. Geologist in Charge. Sheet III.
Publisher
Department of The Interior. United States Geological and Geographical Surveys of the Territories.
Author
Marbut, Curtis F.
Full Title
Soil Map of the United States by Curtis F. Marbut and Associates in the Soil Survery, U.S. Department of Agriculture, F.J. Marschner, Cartographer and Associate in Compilation. 1931. Soils, Plate 5, Section 6. Lith. A. Hoen & Co., Inc. Atlas of American Agriculture.
Publisher
U.S. Department of Agriculture
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