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MICHIGAN LIMESTONE AND CHEMICAL COMPANY
http://www.carmeusena.com/

Michigan Limestone & Chemical Co. was formed in 1910 along the Lake Huron shore just south of the small lumbering community of Rogers (now Rogers City).

United States Steel Corporation purchased a controlling interest in Michigan Limestone in 1920 and Carl D. Bradley was promoted from General Manager to president of Michigan Limestone. Bradley also served as president of Michigan Limestone's fleet of self-unloading ships used to deliver the stone. Those ships were operated as the Bradley Transportation Co.

Michigan Limestone and Bradley Transportation came under the full ownership of U.S. Steel upon Bradley's death in 1928. At that time U.S. Steel purchased all of the stock of both Michigan Limestone and the associated shipping concern, Bradley Transportation, and made both these companies subsidiaries of U.S. Steel. The company became a division in 1951 when the operations at Rogers City became U.S. Steel’s "Northern District", since the main offices were moved to Detroit. The operation is still a major employer in northern Michigan. Its ownership has changed several times in recent years. Since 2008 it has been owned by Carmeuse Lime, a major producer of lime-based products.

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