Anacostia River

Anacostia River
Anacostia River adjacent to the United States National Arboretum in Washington, D.C.
Map of the Anacostia River watershed
Location
Country	United States
State	Maryland and Washington, D.C.
Physical characteristics
Source
- location	Bladensburg, Maryland
- coordinates	38°56′33″N 76°56′38″W
Mouth	Potomac River
- location	Washington, D.C.
- coordinates	38°51′13″N 77°01′13″W
- elevation	−3 ft (−0.91 m)
Length	8.4 mi (13.5 km)
Basin size	176 sq mi (460 km2)
Discharge
- location	mouth
- average	216.93 cu ft/s (6.143 m3/s) (estimate)
Basin features
Tributaries
- left	Northeast Branch
- right	Northwest Branch

The Anacostia River is a river in the Mid-Atlantic States of the United States. It flows from Prince George's County, Maryland, to Washington, D.C. The river is very polluted. Sewage water is dumped into the river.