The Centennial Geological Map of the Southern Peninsula of Michigan

This beautiful, geological formation map listing all the soil, rock, sand, gravel, and more of the southern peninsula of Michigan. Published in 1936 by the United States Geological Survey, this map gives great detail and the color has remained quite bold. The color coded key notes several categories and subcategories of the system series, group, symbol, formation stage, description, and economic resources. There is a geological cross-section of southern Michigan, from Dowagiac to Alpena. This map would look beautiful matted and framed or a great educational map for geological study.

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