05/03/2026
that over thousands of years the Potomac River has carved out the 15-mile-long Potomac Gorge which stretches from Great Falls to Georgetown and drops from 140 to 10 feet above sea level?
The fall line, an area of geological transition between the Piedmont Plateau and the Atlantic Coastal Plain is located within the Potomac Gorge.
As a result, the area is one of the most biologically diverse areas in the world. The area contains 60 rare plants, including many spring blooms that are showing their colors now!
Photo (NPS): Wide river surrounded by gray and black rocks and green plants.
National Park Service Great Falls Park George Washington Memorial Parkway