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County
Geology of Loudoun County
Loudoun County, Virginia —
The geology of Loudoun County, Virginia, was mapped in 1988 through 1991 under a cooperative agreement between the U.S. Geological Survey (USGS) and the Loudoun... -
County
Loudoun Geologic Bedrocks
Loudoun County, Virginia —
More Metadata"Bedrock" is one of four layers which collectively describe the subsurface geologic formation, structural geology and surficial deposits. "Bedrock" is...