1979. 2013-06-13T13:46:52Z. 2013-06-26T19:51:05Z. Trimble, Donald E. U.S. Geological Survey. English. Public. Colorado, Colorado Springs Region, Castle Rock Region, and Front Range (Colo. and Wyo.).
Search Results
1979. 2013-05-30T20:08:42Z. 2013-06-14T17:58:36Z. Trimble, Donald E. Dept. of the Interior, U.S. Geological Survey. English. Public. Colorado and Denver Metropolitan Area.
3. Geologic map of the Heidrick quadrangle, Knox and Laurel Counties, Kentucky [cartographic material]
1978. 2012-06-21T14:22:31Z. 2012-06-29T20:46:34Z. Trimble, Donald E. U.S. Geological Survey. English. Public. Kentucky, Knox County, and Laurel County.
1975. 2012-04-27T19:45:04Z. 2012-05-03T15:42:28Z. Trimble, Donald E. The Survey. English. Public. Colorado and Boulder County.
1982. 2012-06-27T15:11:26Z. 2012-07-05T13:04:07Z. Trimble, Donald E. The Survey. English. Public. Idaho, Bannock County, and Bingham County.
1963. 2011-06-02T13:53:04Z. 2011-06-02T13:53:04Z. Trimble, Donald E. U.S. Geological Survey. English. Public. Kentucky.
1954. 2011-03-30T17:10:08Z. 2012-02-14T00:23:20Z. Trimble, Donald E. U.S. Geological Survey. English. Public. Washington (State), Franklin County, and Walla Walla County.
1974. 2013-05-28T19:25:31Z. 2013-06-14T17:58:10Z. Trimble, Donald E. U.S. Geological Survey. English. Public. Colorado and Denver Region.