1908. 2013-03-14T16:44:03Z. 2013-03-14T16:44:03Z. Martin, G. C. (George Curtis), 1875-1943. The Survey. English. Public. Maryland, Allegany County, Garrett County, Pennsylvania, Fayette County, Somerset County, West Virginia, Preston County, États-Unis, Pennsylvanie, and Virginie-occidentale.
Search Results
1996. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey. English. Public. Pennsylvania and Chester County.
1993. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey. English. Public. Pennsylvania, Bucks County, and Springfield (Bucks County, Pa. : Township).
1992. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey. English. Public. Pennsylvania and Chester County.
1990. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey. English. Public. Pennsylvania and Chester County.
1993. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey. English. Public. Pennsylvania and Bucks County.
1907. 2013-03-14T15:59:12Z. 2013-03-14T15:59:12Z. Clapp, Frederick G. (Frederick Gardner), 1879-1944. The Survey. English. Public. Pennsylvania, Greene County, Washington County, États-Unis, and Pennsylvanie.
1913. 2013-03-14T18:59:25Z. 2013-03-14T18:59:25Z. Campbell, Marius R. (Marius Robinson), 1858-1940. The Survey. English. Public. Pennsylvania, Blair County, Cambria County, Clearfield County, Indiana County, États-Unis, and Pennsylvanie.
1905. 2013-03-14T15:33:38Z. 2013-03-14T15:33:38Z. Woolsey, Lester Hood, 1877-1961. The Survey. English. Public. Pennsylvania, Allegheny County, Beaver County, États-Unis, and arizona.
1903. 2013-03-13T20:11:35Z. 2013-03-13T20:11:35Z. Campbell, Marius R. (Marius Robinson), 1858-1940. The Survey. English. Public. Pennsylvania, Allegheny County, Fayette County, Washington County, Westmoreland County, États-Unis, and Pennsylvanie.




