Geology of the Chesapeake and Ohio Canal National Historical Park and Potomac River corridor, District of Columbia, Maryland, West Virginia, and Virginia - Southworth, Scott, 1957- (Reston, Va. : U.S. Geological Survey, 2008)
One color folded map in pocket.
Includes bibliogr. references : (p. 93-97)
Keywords: Geology, Stratigraphic -- Mesozoic; Geology, Stratigraphic -- Quaternary; Geology -- Chesapeake and Ohio Canal National Historical Park; Geology -- Potomac River Valley