1. Bedrock geology of the Ahmeek quadrangle, Michigan [cartographic material] Yale Public content 1953. 2011-11-29T20:53:06Z. 2012-03-05T17:16:43Z. White, Walter S. (Walter Stanley), 1915-. U.S. Geological Survey. English. Public. Michigan, Keweenaw County, and Houghton County.