The Chesapeake and Ohio Canal operated along the Potomac River from 1828 to 1924. It is now a US National Park, and covers 184.5 miles from Washington DC to Cumberland, Maryland. This lock is in the Great Falls area in Maryland.
October 6th, 2010
Viewed 109 Times - Last Visitor from Austin, TX on 03/16/2019 at 8:19 PM