1889. 2011-05-23T20:09:22Z. 2015-10-21T14:59:48Z. Geological Survey (U.S.). U.S. Dept. of the Interior, Geological Survey. English. Public. Campbell County (Tenn.), Kentucky, Knox (Ky.), Laurel (Ky.), Pulaski (Ky.), Scott County (Tenn.), Tennessee, and Whitley (Ky.).