1945. 2018-01-16T14:31:35Z. 2018-02-20T14:56:36Z. Cohee, George Vincent, 1907-. U.S. Geological Survey. English. cartographic image. Public. Michigan Basin (Mich. and Ont.), North America, and Michigan Basin.
Search Results
2008. 2008-09-30T14:31:42Z. 2012-04-23T14:42:14Z. Swezey, C. (Christopher). U.S. Geological Survey ; For sale by U.S. Geological Survey, Information Services. English. Public. Michigan Basin (Mich. and Ont.). Paleozoic and Mesozoic.
1945. 2018-02-20T15:02:08Z. 2018-02-20T15:02:08Z. Cohee, George Vincent, 1907-. U.S. Geological Survey. English. cartographic image. Public. Michigan Basin (Mich. and Ont.), North America, and Michigan Basin. Ordovician, Cambrian, and From 425 to 570 million years ago.
1948. 2018-01-30T14:30:37Z. 2018-01-30T14:30:37Z. Cohee, George Vincent, 1907-. U.S. Geological Survey. English. cartographic image. Public. Michigan Basin (Mich. and Ont.), North America, and Michigan Basin. Ordovician, Silurian, and From 405 to 500 million years ago.