1968. 2012-02-16T21:00:50Z. 2012-03-05T17:41:25Z. Roen, John B. U.S. Geological Survey. English. Public. Pennsylvania, Washington County, Alleghany County, and Westmoreland County.
Search Results
1971. 2012-03-14T14:53:32Z. 2012-03-27T23:59:11Z. Arndt, Harold H. U.S. Geological Survey. English. Public. Pennsylvania, Northumberland County, and Columbia County.
1997. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey. English. Public. Pennsylvania and Northampton County.
1974. 2012-04-17T13:44:10Z. 2014-12-23T23:03:56Z. Wood, Gordon H. (Gordon Harry), 1919-. U.S. Geological Survey. English. Public. Pennsylvania, Carbon County, and Schuylkill County.
1987. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Branch of Distribution. English. Public. New Jersey, New York (State), and Pennsylvania.
1972. 2012-11-13T20:49:29Z. 2012-11-13T20:49:29Z. Roen, John B. The Survey. English. Public. Pennsylvania and Greene County.
197. 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.
1968. 2012-01-24T16:11:35Z. 2012-03-05T17:35:38Z. Wood, Gordon H. (Gordon Harry), 1919-. Geological Survey. English. Public. Pennsylvania, Schuylkill County, Lebanon County, and Berks County.
1972. 2012-03-26T13:55:58Z. 2012-05-03T15:31:54Z. Kent, Bion H. (Bion Huntley), 1925-. Geological Survey. English. Public. Pennsylvania, Washington County, and Greene County.
1990. 2002-06-01T04:00:00Z. 2012-07-05T14:03:50Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. Pennsylvania, Northampton County, and Monroe County.
