Relief shown by contours.; Geology by Geological Survey of Michigan., 70 x 44 centimeters
Creator
Allen, R. C. (Rolland Craten), 1881-1948
Publisher
U.S. Geological Survey (Washington, D.C)
Temporal Coverage
1909
Date Issued
1909
Rights
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Allen, R. C. (Rolland Craten), 1881-1948 (1909). Geologic map of Iron River District, Michigan. U.S. Geological Survey (Washington, D.C). https://umedia.lib.umn.edu/item/p16022coll230:1962 (map)