U.S. GEOLOGICAL SURVEY BULLETIN 2123
Geology of the Harpers Ferry Quadrangle, Virginia, Maryland, and West Virginia
Online Version 1.0
Looking west at Harpers Ferry, West Virginia, from the Loudoun Heights trail on Blue Ridge in Virginia. Photograph taken March 1989 by Scott Southworth.
Prepared in cooperation with the Maryland Geological Survey, the National Park Service, and the Loudoun County Department of Environmental Resources