Stock Photo - The Great Falls of the Potomac River are located at the Fall line of the Potomac River, 14 miles (23 km) upstream from Washington, D.C. The water falls a total of 76 feet (23 meters) in elevation over a distance of less than 1 mile (1.6 km), making the

Stock Photo: The Great Falls of the Potomac River are located at the Fall line of the Potomac River, 14 miles (23 km) upstream from Washington, D.C.

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