Includes 3 cross-sections showing bedrock.; Includes outline of the geological history of Wisconsin and elevations above mean sea level of important lakes, rivers and prominent hills. on 2 sheets 74 x 132 centimeters Scale 1:380,160 General Map Collection
Creator:
Hotchkiss, William Otis, 1878-1954
Publisher:
Wisconsin Geological and Natural History Survey (Madison, Wis.?)
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