1956. 2012-08-15T14:21:43Z. 2013-03-18T22:12:15Z. Hackman, Robert J. Geological Survey. English. Public. Utah, San Juan County, Colorado, Montrose County, and San Miguel County.
Search Results
1955. 2012-07-27T13:22:25Z. 2012-07-27T13:22:25Z. Hackman, Robert J. The Survey. English. Public. Utah and Garfield County.
1957. 2012-08-30T13:35:50Z. 2013-03-18T22:15:44Z. Hackman, Robert J. The Survey. English. Public. Utah and San Juan County.
1956. 2012-08-21T18:54:31Z. 2013-03-18T22:13:39Z. Hackman, Robert J. U.S. Geological Survey. English. Public. Utah, Kane County, San Juan County, Arizona, and Coconino County.
1957. 2012-08-30T13:52:42Z. 2013-03-18T22:15:45Z. Hackman, Robert J. The Survey. English. Public. Utah, San Juan County, Arizona, and Coconino County.
1956. 2012-08-21T18:56:36Z. 2013-03-18T22:13:39Z. Hackman, Robert J. U.S. Geological Survey. English. Public. Utah, San Juan County, Arizona, and Navajo County.
1959. 2012-09-05T15:48:36Z. 2013-03-18T22:16:28Z. Hackman, Robert J. U.S. Geological Survey. English. Public. Colorado, Montezuma County, and Dolores County.
