1995. 2002-06-01T04:00:00Z. 2016-07-20T21:24:09Z. Geological Survey (U.S.). U.S. Geological Survey ; For sale by U.S. Geological Survey Information Services. English. cartographic image. Public. Colorado, Montezuma County, Dolores County, Dolores County., and Montezuma County. Jurassic.
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1992. 2002-06-01T04:00:00Z. 2016-07-20T21:24:08Z. Geological Survey (U.S.). U.S. Geological Survey ; For sale by Map Distribution. English. cartographic image. Public. Colorado, Ouray Region, and Black Canyon of the Gunnison National Monument Region. Jurassic.
1995. 2002-06-01T04:00:00Z. 2016-07-20T21:24:09Z. O'Sullivan, Robert Brett, 1923-. U.S. Geological Survey ; For sale by U.S. Geological Survey Information Services. English. cartographic image. Public. Colorado, Montezuma County, Dolores County, San Miguel County, Dolores County., Montezuma County., and San Miguel County. Jurassic.
1975. 2008-10-15T19:29:08Z. 2011-03-28T23:33:40Z. Rickard, Lawrence V. University of New York, State Education Dept. English. Public. New York (State), New York, and Geology, Stratigraphic. Silurian and Devonian.
1990. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. Powder River Basin (Wyo. and Mont.). Paleocene.
1986. 2008-09-04T13:13:08Z. 2011-03-25T21:38:24Z. Bluemle, John P. North Dakota Geological Survey. English. Public. North Dakota.
1925. 2018-06-25T19:51:50Z. 2018-06-25T19:51:50Z. Hanson, George, 1891-. Geological Survey. English. cartographic image. Public. British Columbia and Driftwood Creek Region.
1986. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Branch of Distribution. English. Public. Wyoming. Cretaceous.
1986. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Branch of Distribution. English. Public. Middle West. Cambrian., Ordovician., and Mississippian.
1946. 2012-07-09T19:26:42Z. 2022-12-06T16:58:03Z. Collins, W. H. (William Henry), 1878-1937. Bureau of Geology and Topography. English. Public. Ontario and Falconbridge Region.