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1999. 2002-06-01T04:00:00Z. 2022-12-08T02:20:31Z. Geological Survey (U.S.). The Survey ; Information Services [distributor]. English. Public. Virginia, Frederick County, Shenandoah County, and Warren County.
1998. 2002-06-01T04:00:00Z. 2022-12-08T02:20:30Z. Geological Survey (U.S.). The Survey ; For sale by Information Services. English. Public. Maryland, Frederick County, Montgomery County, Virginia, and Loudoun County.
2000. 2002-06-01T04:00:00Z. 2022-12-08T02:20:32Z. Geological Survey (U.S.). The Survey ; Information Services. English. Public. Maryland, Frederick County, and Montgomery County.
5. Geologic observations along a pipeline trench in Frederick County, Maryland [cartographic material]
1984. 2023-09-01T16:34:45Z. 2023-09-02T03:02:58Z. Davies, William Edward, 1917-. U.S. Geological Survey. English. cartographic image. Public. Maryland, Frederick County, and Frederick County.
1993. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; Books and Open-File Reports Section, distributor. English. Public. Virginia, Frederick County, and Shenandoah County.
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