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Protecting the Canal since 1954

Chesapeake & Ohio Canal Association is an independent, all-volunteer citizens organization established in 1954 to help conserve the natural and historical environment of the C&O Canal and the Potomac River Basin. The association works with the National Park Service in its efforts to preserve and promote the 184-mile towpath.
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The Paw Paw Tunnel, just over the West Virginia line in Maryland, is a 3,118-foot canal tunnel built on the Chesapeake and Ohio Canal. Hand-dug between 1836 and 1850, it was made to bypass the sharp Paw Paw Bends of the Potomac River and is lined with more than six million bricks. Walking through the dark, unlit tunnel—bring a flashlight—you’ll notice rope burns on the walls, weep holes, and maybe even a bat or two. Water still runs along the old canal path, and the echoes inside make the walk both eerie and fascinating.

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14 hours ago

C&O Canal Association

Former site of Dam 3 and head gates to the Armory Canal, also known as the "Government Dam". It was built in 1799 to provide water to the Harpers Ferry Armory. It was rebuilt in 1806 and 1820. When the Chesapeake and Ohio Canal arrived in 1833, it was allowed to use this dam as it's third supply dam rather than build a separate structure downstream as originally planned. This is why it was designated "Dam 3". Seen from the Potomac Road upstream from Harpers Ferry West Virginia. ... See MoreSee Less

14 hours ago

C&O Canal Association

Former site of Dam 3, also known as the "Government Dam", which was originally built in 1799 to provide water to the Harpers Ferry Armory. It was rebuilt in 1806 and 1820. When the Chesapeake and Ohio Canal arrived in 1833, it was allowed to use this dam as it's third supply dam rather than build a separate structure downstream as originally planned. This is why it was designated "Dam 3". Seen from the Potomac Road upstream from Harpers Ferry West Virginia. ... See MoreSee Less

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