1 in. = 4 miles. (W 104°45ʹ--W 102°15ʹ/N 44°45ʹ--N 43°30ʹ). Relief shown by contours, hachures and spot heights. "Field work 1875. Publication 1879." "Geology of the Black Hills by Henry Newton, E.M."--Upper right margin.
75 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.), Newton, Henry, 1845-1877, and Powell, John Wesley, 1834-1902
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