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
Search Potomac Sites
POTOMAC RIVERWATCH: Winter 2026
- Massive Sewage Spill on the River
- Bacteria Levels Above Safe Limits
- Remediation Hindered by Winter Weather
- Air Crash Report Issued
C&O Canal and Potomac River at Cabin John were inundated with raw sewage in mid-January. Photo by Cliff Owen, Associated Press.
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