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Start Over Year 1879 Creator Geographical and Geological Survey of the Rocky Mountain Region (U.S.) Bounding Box -180 -89.81531 180 89.456192

1. Map of the Black Hills of Dakota : from explorations made in 1875

Maps University Of Minnesota Public content
1879. Geographical and Geological Survey of the Rocky Mountain Region (U.S.), Jenney, Walter P. (Walter Proctor), 1849-1921, and Mahlo, Emil, 1851-1904. 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... Dept. of the Interior, U.S.G. and G. Survey (Washington, D.C.).

2. Geological map of the Black Hills of Dakota

Maps University Of Minnesota Public content
1879. Geographical and Geological Survey of the Rocky Mountain Region (U.S.), Newton, Henry, 1845-1877, and Powell, John Wesley, 1834-1902. 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 ... U.S. Geological Survey (Washington, D.C).