Research topic: Driftless Area

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Driftless Area

The Columbia Encyclopedia, Sixth Edition
Driftless Area c.13,000 sq mi (33,670 sq km), largely in SW Wis. but extending into SE Minn., NE Iowa, and NW Ill. The continental glacier which covered most surrounding regions did not touch this area, which abounds in caves and sinkholes and has residual, well-drained soil. Because it was an important lead-mining region, the federal government prohibited farming in the Driftless Area until the 1840s. It was then settled by European immigrants. Author not available, DRIFTLESS AREA. , The Columbia Encyclopedia, Sixth Edition 2007 ... Read more
Wisconsin
...mineral resources; zinc (as well as lead) is mined in the Driftless Area in the southwest. Important copper deposits were discovered...lumber industry, and today c.40% of Wisconsin's land area is forested. The pulp, paper, and paper-products industrial... Read more

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