Jefferson

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Geologic Map Database of the Washington DC Area Featuring Data From Three 30 X 60 Minute Quadrangles: Frederick, Washington West, and Fredericksburg

The Washington DC Area geologic map database (DCDB) provides geologic map information of areas to the NW, W, and SW of Washington, DC to various professionals and private citizens who have uses for geologic data. Digital, geographically referenced, geolo

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Digital geologic map and database of the Frederick 30 X 60 minute quadrangle, Maryland, Virginia, and West Virginia

The geology of the Frederick 30 by 60 minute quadrangle, Maryland, Virginia, and West Virginia, was mapped on 1:24,000-scale base maps from 1989 to 1994. The geologic data were manually compiled at 1:100,000-scale in 1997 and were digitized and converted

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