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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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