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.
Search Results
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.
1972. 2012-03-26T14:13:17Z. 2012-05-03T15:31:55Z. Weiss, Malcolm P. (Malcolm Pickett), 1921-. Geological Survey. English. Public. Kentucky and Ohio.
1893. 2011-05-27T20:03:17Z. 2015-10-21T15:00:04Z. Thompson, Gilbert, 1839-1909. Geological Survey. English. Public. Estillville Region (Tenn.), Kentucky, Tennessee, and Virginia.
1897. 2011-05-23T19:56:16Z. 2015-10-21T14:59:48Z. Thompson, Gilbert, 1839-1909. Geological Survey. English. Public. Jackson County (Ky.), Kentucky, Laurel County (Ky.), Lincoln County (Ky.), London (Ky.), Pulaski County (Ky.), and Rockcastle County (Ky.).