
The area of Great Falls is one of the reasons for the C&O Canal needed to be built for boat traffic.
Photo: NPS photo
Preserving America's early transportation history, the C&O Canal began as a dream of passage to Western wealth. Operating for nearly 100 years the canal was a lifeline for communities along the Potomac River as coal, lumber, and agricultural products floated down the waterway to market. Today it endures as a pathway for discovering historical, natural, and recreational treasures.
142 W. Potomac St.
Williamsport, MD 21795
The park has numerous access points. There is no main entrance. In Washington, DC, the C&O Canal begins at mile 0 in Georgetown near 29th St NW, south of M St, and runs alongside Canal Rd to the west. The entrance to Great Falls Tavern area is at MacArthur Blvd and Falls Rd in Potomac, MD. Park Headquarters and the Cushwa Basin Visitor Center are in Williamsport, MD off I-81 at exit 2. The Cumberland Terminus Visitor Center and mile 184.5 are off I-68 at exit 43C. See the maps page for more.
Get directions →The Washington, DC, area has a four-season Mid-Atlantic climate. Summertime is warm and humid, while winter can be cold and snowy. Precipitation averages 2-4” monthly, year-round. The climate gradually gets cooler and wetter further west along the canal where the elevation is higher.