1955. 2011-04-05T17:12:16Z. 2012-02-14T23:26:44Z. Cater, Fred W. (Fred William), 1912-. Geological Survey. English. Public. Colorado and Mesa County.
Search Results
1973. 2012-03-30T15:34:39Z. 2012-05-03T15:34:42Z. Wood, Gordon H. (Gordon Harry), 1919-. Geological Survey. English. Public. Pennsylvania and Schuylkill County.
1967. 2012-01-17T21:40:42Z. 2012-03-05T17:34:07Z. Drake, Avery Ala, 1927-. Geological Survey. English. Public. Pennsylvania, Northumberland County, New Jersey, and Warren County.
1973. 2012-04-03T14:18:08Z. 2012-05-03T15:36:05Z. Osborne, Robert H. Geological Survey. English. Public. Ohio, Clermont County, Brown County, Kentucky, and Bracken County.
1967. 2012-01-19T20:12:15Z. 2012-03-05T17:34:46Z. Kent, Bion H. (Bion Huntley), 1925-. Geological Survey. English. Public. Pennsylvania and Washington County.
1973. 2012-04-03T14:23:41Z. 2012-05-03T15:36:08Z. Outerbridge, William F. Geological Survey. English. Public. Ohio and Kentucky.
1973. 2012-04-09T13:18:30Z. 2012-04-16T15:47:48Z. Kohut, Joseph J. Geological Survey. English. Public. Ohio, Clermont County, Kentucky, and Campbell County.
1974. 2012-04-17T20:02:00Z. 2012-05-03T15:39:32Z. McKay, E. J. Geological Survey. English. Public. Colorado and Moffat County.
1969. 2012-02-28T16:03:29Z. 2012-02-28T16:03:29Z. Kent, Bion H. (Bion Huntley), 1925-. Geological Survey. English. Public. Pennsylvania, Greene County, and Washington County.
1974. 2012-04-17T20:05:10Z. 2012-05-03T15:39:32Z. McKay, E. J. Geological Survey. English. Public. Colorado and Moffat County.