Greenbelt Park 
6565 Greenbelt Rd.
Greenbelt, MD 20770
301-344-3948
http://www.nps.gov/gree
National Park: Bike, Birding, Camp, Hike, Picnic, Walk
Greenbelt Park is a retreat from the pressures of city life and a refuge for native plants and animals just twelve miles from Washington, D.C.