C&O Canal Great Falls Tavern – Canal towpath follows Potomac River route for 184.5 miles from Washington, D.C. to Cumberland. Moderate, 3.8-mile Billy Goat Trail has a one-mile portion strewn with boulders and rocks.
Catoctin Mountain Park and Cunningham Falls State Park – From “easy” to “steep and strenuous” day hikes. Rock outcrops and waterfalls. One trail leads to historic Catoctin Iron Furnace.