1949. 2018-05-15T19:48:15Z. 2018-05-15T19:48:15Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Colorado, Rocky Mountains Region, Colorado., and Rocky Mountains Region.
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1988. 2012-07-16T19:37:29Z. 2012-07-16T19:37:29Z. Mountjoy, Eric W. Geological Survey of Canada. English. Public. British Columbia and Rocky Mountains Region.
1845. 2021-11-11T14:51:43Z. 2021-11-16T22:32:53Z. Frémont, John Charles, 1813-1890, cartographer. publisher not identified. English. cartographic image. Public. West (U.S.) and Rocky Mountains Region.
1845. 2021-11-01T14:56:57Z. 2021-11-16T22:32:56Z. Frémont, John Charles, 1813-1890, cartographer. publisher not identified. English. cartographic image. Public. West (U.S.), Rocky Mountains Region, and West United States.
1876. 2015-11-02T20:49:55Z. 2015-11-17T23:16:24Z. Masi, Wm. M. (William M.). Wm. M. Masi & Alex J. Dallas, engraved by Chas. Shober & Co.). English. cartographic image. Public. Wyoming, Colorado, Black Hills (S.D. and Wyo.), Rocky Mountains Region, Colorado., Rocky Mountains Region., United States, Black Hills., and Wyoming.
1847. 2002-08-22T15:42:28Z. 2016-11-29T22:10:56Z. Mitchell, S. Augustus (Samuel Augustus), 1792-1868. S.A. Mitchell. English. Public. Pacific States and Rocky Mountains Region.
1939. 2002-06-01T04:00:00Z. 2023-04-21T21:39:01Z. United States. Bureau of Agricultural Economics. The Bureau?. English. Public. Rocky Mountains Region.
1880. 2013-10-16T20:14:20Z. 2015-10-27T22:12:14Z. Rand McNally and Company. Rand, McNally & Co. English. Public. Rocky Mountains Region.
1986. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Corvallis Environmental Research Laboratory. The Laboratory. English. Public. Rocky Mountains Region and Pacific States.