1892. 2011-05-31T13:22:29Z. 2015-10-21T15:00:05Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Albemarle County (Va.), Culpeper County (Va.), Gordonsville Region (Va.), Greene County (Va.), Louisa County (Va.), Madison County (Va.), Orange County (Va.), and Virginia.
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1892. 2011-05-31T17:22:46Z. 2015-10-21T15:00:06Z. Geological Survey (U.S.). The Survey. English. Public. Culpeper County (Va.), Fauquier County (Va.), Loudoun County (Va.), Prince William County (Va.), Virginia, and Warrenton Region (Va.).
