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.
The Northwest Branch underneath the Green and Yellow Lines of the Washington Metro near the West Hyattsville station
Chillum is an unincorporated area and census-designated place in Prince George's County, Maryland, United States, bordering Washington, D.C., and Montgomery County.