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Google Analytics Dashboard for Geologic map database of the Washington DC area featuring data from three 30 x 60 minute quadrangles: Frederick, Washington West, and Fredericksburg

Geologic map database of the Washington DC area featuring data from three 30 x 60 minute quadrangles: Frederick, Washington West, and Fredericksburg

URI: https://pubs.usgs.gov/publication/ofr01227

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