Great Falls Park 9200 Old Dominion Dr. McLean, VA 22102 703-285-2965 (visitor information) The Maryland side of Great Falls is part of the C&O Canal National Historical Park. Their street address is: 11710 MacArthur Blvd. Potomac MD 20854 301-767-3714 (visitor information)
At Great Falls, the Potomac River builds up speed and force as it falls over a series of steep, jagged rocks and flows through the narrow Mather Gorge. The Patowmack Canal offers a glimpse into the early history of this country. Great Falls Park has many opportunities to explore history and nature, all in a beautiful 800-acre park only 15 miles from the Nation's Capital.