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U.S. Geological Survey professional paper, 1691 - Geology of the Chesapeake and Ohio Canal National Historical Park and Potomac Rive Corridor : District of Columbia, Maryland, West Virginia, and Virginia
Scott Southworth, Auteur | 2008The Chesapeake and Ohio Canal National Historical Park is 184.5 mi long and extends from Washington, D.C., to Cumberland, Md. The canal passes through three physiographic provinces including the Piedmont, Valley and Ridge, and the Blue Ridge; th[...]
Bulletin : texte imprimé
U.S. Geological Survey circular, 1264 - Geology of the National Capital Region: field trip guidebook
Scott Southworth, Éditeur scientifique ; William Burton, Auteur | 2004
