"The Chesapeake and Ohio Canal runs along the north side of the Potomac River from Cumberland, Md., to Georgetown in the District of Columbia. It is a 184.5-mile-long engineering marvel that has 11 aqueducts, 74 lift locks, 160 culverts, 12 river feeder locks and guard locks, and one tunnel through a mountain. Its history spans the 19th century and is filled with mishaps, crimes, secrets, and drama."--
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