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Swains Lockhouse

Swains Lockhouse

Built in 1832, Lockhouse 21, or also known as Swains Lockhouse, was the home of the Swain family. The Swains operated Lock 21 at the Chesapeake & Ohio Canal from 1909 to the closing of the canal in 1924. From the 1930s to 2006, the Swains operated a concession...
Monocacy Aqueduct

Monocacy Aqueduct

Completed in May 1833, the Monocacy Aqueduct, also known as C&O Canal Aqueduct No. 2, was the longest of eleven aqueducts of the Chesapeake and Ohio Canal. This aqueduct crosses the Monocacy River close to its mouth at the Potomac River. Sugarloaf Mountain...
Paw Paw Tunnel

Paw Paw Tunnel

The Chesapeake & Ohio Canal is 184.5 miles long. Construction began in 1828 in the Georgetown neighborhood of the District of Columbia and continued until summer 1850 when the canal reached its terminus in Hagerstown, Maryland. The most challenging section, by...
Great Falls of the Potomac

Great Falls of the Potomac

Fifteen miles upstream from the Nation’s Capitol, the Potomac River descends a total of 76 feet over a series of multiple waterfalls at the Atlantic Seaboard Fall Line. This spectacular site is better known as the Great Falls of the Potomac River, and it is so...