Great Falls Park- River Trail

Great Falls Park is a small National Park Service (NPS) site in Virginia, United States. Situated on 800 acres (3.65 km2) along the banks of the Potomac River in northern Fairfax County, the park is a disconnected but integral part of the George Washington Memorial Parkway. The Great Falls of the Potomac River are near the northern boundary of the park, as are the remains of the Patowmack Canal, the first canal in the United States that used locks to raise and lower boats.

Great Falls is a series of rapids and waterfalls on the Potomac River, 14 miles (23 km) upstream from Washington, D.C., on the border of Montgomery County, Maryland and Fairfax County, Virginia. Great Falls Park, operated by the National Park Service, is located on the southern banks in Virginia, while Chesapeake and Ohio Canal parkland is located along the northern banks of the river in Maryland.

The Billy Goat Trail is a 4.7-mile (7.6 km) hiking trail that follows a path between the C&O Canal and the Potomac River within the Chesapeake and Ohio Canal National Historical Park near Great Falls in Montgomery County, Maryland. The trail has three sections: Section A, the northernmost, is 1.7 miles (2.7 km); Section B is 1.4 miles (2.3 km); and Section C, the southernmost, is 1.6 miles (2.6 km)

Mather Gorge is a river gorge south and just downriver of Great Falls in the state of Maryland bordering Virginia. The Maryland land side of the gorge is Bear Island, part of the Chesapeake and Ohio Canal National Historical Park, and the Virginia side is part of Great Falls Park. Both parks are National Park Service sites.

Olmsted Island is a small island in the middle of the Potomac River in the U.S. state of Maryland, near Great Falls which is a part of C & O Canal National Historical Park, located across the river from Great Falls Park. It is a part of Potomac, Maryland.Named for Frederick Law Olmsted, Jr., the landscape architect and preservationist whose famous father designed New York's Central Park, the small island is a bedrock terrace forest that supports rare, threatened and endangered plant species.

The Patowmack Canal is a series of five inoperative canals located in Maryland and Virginia, United States, that was designed to bypass rapids in the Potomac River upstream of the present Washington, D.C. area. The most well known of them is the Great Falls skirting canal, whose remains are managed by the National Park Service as it is within Great Falls Park Virginia, an integral part of the George Washington Memorial Parkway.