1991. 2002-06-01T04:00:00Z. 2016-07-20T21:24:08Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. cartographic image. Public. California, Diablo Range, U.S., and Diablo Range.
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1979. 2014-09-10T17:26:37Z. 2021-06-01T21:36:14Z. Weir, Gordon W. (Gordon Whitney), 1922-2011. U.S. Geological Survey. English. Public. Kentucky and Kentucky. Ordovician and From 425 to 500 million years ago.
1980. 2015-05-05T18:58:22Z. 2015-05-19T22:10:49Z. Raines, Gary L. The Survey. English. cartographic image. Public. Powder River Basin (Wyo. and Mont.).
1997. 2002-06-01T04:00:00Z. 2004-04-05T13:49:07Z. Geological Survey (U.S.). U.S. Geological Survey ; For sale by Geological Survey Information Services. English. Public. Arkansas, Harrison Region, Ozark Mountains, and Missouri. Cambrian.
1978. 2017-10-31T13:11:39Z. 2017-10-31T13:11:39Z. Williams, Harold, 1934-. Memorial University of Newfoundland : Available from Dept. of Geology, Memorial University. English. cartographic image. Public. Appalachian Region, Canada, Appalachian Orogen., North America, Appalachian Orogen., United States Appalachian Orogen., Appalachian Region., Appalaches, and Amérique du Nord.