• Paddling on the Potomac River

    Potomac Heritage

    National Scenic Trail DC,MD,PA,VA

Photo Gallery

Eighth-grade student with camera on boardwalk
NPS photo/Donald Briggs

Did You Know?

Map of Washington DC, Piedmont Plateau and Atlantic Coastal Plain

The Civil War Defenses of Washington exist because of geology and topography. The strategic high ground where the fortifications are located stretches between two considerably different geologic terrains: the Piedmont Plateau to the north and west and the Atlantic Coastal Plain to the east.