Northwest Branch Anacostia River is a 21.5-mile-long (34.6 km) free-flowing stream in Montgomery County and Prince George's County, Maryland. It is a tributary of the Anacostia River, which flows to the Potomac River and the Chesapeake Bay.
Northwest Branch Anacostia River is a 21.5-mile-long (34.6 km) free-flowing stream in Montgomery County and Prince George's County, Maryland. It is a tributary of the Anacostia River, which flows to the Potomac River and the Chesapeake Bay. (en)