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Chesapeake and Ohio Canal National Historic Park: Swains Lock to Great Falls

This storied trail used to be all work; now it’s all play for hikers and bikers interested in historic buildings and DC’s most famous waterfall.

Trip Tools

To Trailhead

Take I-495 N to MD 190 N exit. Go 4 mi. through Potomac, MD, and take L onto Swains Lock Rd. Park in lot @ end of road.

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