Map of the Black Hills of Dakota : from explorations made in 1875
1 in. = 4 miles. Relief shown by hachures and spot heights. "Geology of the Black Hills by Henry Newton E.M."--Upper right.
74 x 89 centimeters
Scale [1:253,440]. 1 inch = 4 miles
General Map Collection
Geographical and Geological Survey of the Rocky Mountain Region (U.S.), Jenney, Walter P. (Walter Proctor), 1849-1921, and Mahlo, Emil, 1851-1904.
Dept. of the Interior, U.S.G. and G. Survey (Washington, D.C.)
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