1911. 2013-03-14T18:13:26Z. 2021-09-22T17:59:06Z. Shaw, E. W. (Eugene Wesley), 1881-1935. The Survey. English. Public. Pennsylvania, Allegheny County, Beaver County, and Washington County.
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1912. 2013-03-14T18:31:42Z. 2013-03-14T18:31:42Z. Munn, M. J. (Malcolm John), 1874-1949. The Survey. English. Public. Pennsylvania, Greene County, and Washington County.
1911. 2013-03-14T18:16:03Z. 2013-03-14T18:16:03Z. Shaw, E. W. (Eugene Wesley), 1881-1935. The Survey. English. Public. Pennsylvania, Armstrong County, Butler County, Clarion County, and Venango County.
1981. 2002-06-01T04:00:00Z. 2023-02-14T04:01:24Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Wyoming, Shoshone National Forest, and Shoshone National Forest (Wyo.).
1942. 2012-06-21T13:48:32Z. 2012-06-29T20:46:34Z. Geological Survey of Canada. The Survey. English. Public. Ontario and Middlesex.
1975. 2013-08-27T17:31:13Z. 2013-09-04T19:52:20Z. Miller, Ralph L. (Ralph LeRoy), 1909-1991. The Survey. English. Public. Appalachian Mountains.
1984. 2002-06-01T04:00:00Z. 2023-09-09T03:01:26Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Russia (Federation) and Siberia (Russia).
1999. 2002-06-01T04:00:00Z. 2023-02-14T23:03:06Z. Anderson, Christopher P. The Survey. English. Public. Gulf States.
1980. 2002-06-01T04:00:00Z. 2023-01-10T04:01:27Z. Geological Survey (U.S.). Geologic Division. The Survey. English. cartographic image. Public. Alaska.
1980. 2002-06-01T04:00:00Z. 2023-01-10T04:01:27Z. Geological Survey (U.S.). Geologic Division. The Survey. English. cartographic image. Public. United States.
