1973. 2012-12-10T20:49:26Z. 2013-03-18T22:30:59Z. Bergin, M. J. (Marion Joseph), 1927-. Interior--Geological Survey. English. Public. Pennsylvania and Luzerne 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.
1973. 2012-04-03T14:27:30Z. 2012-05-03T15:36:10Z. Roen, John B. Geological Survey. English. Public. Pennsylvania and Washington County.
4. Geologic map of the Orwigsburg quadrangle, Schuylkill County, Pennsylvania [cartographic material]
1973. 2012-03-28T20:09:51Z. 2012-05-03T15:33:55Z. Wood, Gordon H. (Gordon Harry), 1919-. The Survey. English. Public. Pennsylvania and Schuylkill County.
1973. 2012-11-27T19:24:46Z. 2013-03-18T20:47:08Z. Arndt, Harold H. U.S. Geological Survey. English. Public. Pennsylvania, Northumberland County, and Columbia County.
1973. 2009-11-18T16:15:54Z. 2011-03-28T22:50:28Z. Rand McNally and Company. Texaco. English. Public. Pennsylvania.
1973. 2018-05-24T18:04:22Z. 2018-09-05T19:35:35Z. Pennsylvania. Bureau of Topographic and Geologic Survey. [Pennsylvania Bureau of Topographic and Geologic Survey], Williams & Heintz Map Corp.). English. cartographic image. Public. Lehigh County (Pa.), Pennsylvania, and Lehigh County.
