01900oam 2200469 a 450 991068953020332120110511113538.0(CKB)5470000002332257(OCoLC)264703138(EXLCZ)99547000000233225720081029d2008 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierGeology of the Chesapeake and Ohio Canal National Historical Park and Potomac River corridor, District of Columbia, Maryland, West Virginia, and Virginia[electronic resource] /by Scott Southworth ... [and others] ; prepared in cooperation with the National Park Service ... [and others]Reston, Va. :U.S. Dept. of the Interior, U.S. Geological Survey,2008.1 online resource (154 unnumbered pages) color illustrations, mapsU.S. Geological Survey professional paper ;1691Title from title screen (viewed Oct. 29, 2008).0-607-97795-7 Includes bibliographical references.Geology, StratigraphicMesozoicGeology, StratigraphicQuaternaryGeologyChesapeake and Ohio Canal National Historical ParkGeologyPotomac River ValleyGeology, StratigraphicGeology, StratigraphicGeologyGeology557.52Southworth Scott1957-1384296United States.National Park Service.EJBEJBOCLCQGPOBOOK9910689530203321Geology of the Chesapeake and Ohio Canal National Historical Park and Potomac River corridor, District of Columbia, Maryland, West Virginia, and Virginia3528837UNINA