The Potomac River Guide has details on more than 800 historic and recreation sites along the Nation's River. To start exploring, visit our interactive maps or browse the sites.

Interactive Maps

The Lower Potomac

The Potomac Estuary

Mount Vernon to the Anacostia River

Mall Area

Georgetown to Great Falls

Potomac Piedmont

Upper Potomac

The North Branch

Boat Ramps

Monitoring Sites

Bridges and Ferries

Cruises and Charters

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POTOMAC RIVERWATCH: Fall 2025

• Canal Wall Repaired

• Air Crash Wreckage Found

• Drought Threat Returns

• New Long Bridge Construction

C&O Canal and towpath at the repaired "Log Wall" near Carderock. Photo by Francis Grant-Suttie, courtesy of C&O Canal Trust.

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