1974. 2012-04-17T20:02:00Z. 2012-05-03T15:39:32Z. McKay, E. J. Geological Survey. English. Public. Colorado and Moffat County.
Search Results
1994. 2002-06-01T04:00:00Z. 2012-07-19T15:29:41Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. New Mexico, Rio Arriba County, Taos County, Colorado, and Conejos County.
1961. 2011-05-09T17:33:36Z. 2012-02-14T23:33:10Z. Spencer, Frank Darwyn, 1904-. The Survey. English. Public. Colorado and Boulder County.
1972. 2012-11-09T21:29:19Z. 2012-11-09T21:29:19Z. Hershey, Lloyd A., 1927-. U.S. Geological Survey. English. Public. Colorado and Cache la Poudre River Watershed.
1975. 2013-08-20T15:50:45Z. 2013-08-30T19:16:03Z. Lipman, Peter W. The Survey. English. Public. Colorado and Conejos County.
1990. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. Colorado and Piceance Creek Region.
1988. 2002-06-01T04:00:00Z. 2012-07-03T17:46:46Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. Colorado and Boulder County.
1966. 2012-01-04T17:55:17Z. 2012-03-05T17:28:34Z. Gaskill, David L. The Survey. English. Public. Colorado, Gunnison County, and Pitkin County.
1966. 2012-01-04T16:56:12Z. 2012-03-05T17:28:30Z. Gaskill, David L. The Survey. English. Public. Colorado and Gunnison County.
1969. 2012-02-22T19:31:06Z. 2012-02-22T19:31:06Z. Bryant, Bruce, 1930-. The Survey. English. Public. Colorado, Pitkin County, and Gunnison County.
