1893. 2011-05-31T13:50:46Z. 2015-10-21T15:00:05Z. Geological Survey (U.S.). The Survey. English. Public. Clarke County (Va.), Harpers Ferry (W. Va.), Loudoun County (Va.), Maryland, Virginia, and West Virginia.
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1891. 2011-05-19T19:36:53Z. 2011-05-19T19:42:43Z. U.S. Geological Survey. English. Public. West Virginia, Berkeley County (W. Va.), Hampshire County (W. Va.), Morgan County (W. Va.), Virginia, Frederick County (Va.), Clarke County (Va.), Warren County (Va.), and Shenandoah County (Va.).