Prince William Forest Park is protected forest in the U.S. state of Virginia within Prince William County (and very partially Stafford County), located adjacent to the Marine Corps Base Quantico near the town of Dumfries. Established as Chopawamsic Recreational Demonstration Area in 1936, the park is the largest protected natural area in the Washington, D.C. metropolitan region at over . The park serves as the largest example of Eastern Piedmont forest in the National Park System. The park also protects the Quantico Creek watershed. It is a sanctuary for numerous native plant and animal species. The park was developed by Works Progress Administration workers after the Great Depression. Landscaping and structures were designed by National Park Service architects. Four camp areas are listed individually on the National Register of Historic Places: Goodwill Historic District, Chopawamsic RDA Camp 1 Mawavi Historic District, Chopawamsic RDA Camp 2 Orenda/SP-26 Historic District, Chopawamsic RDA Camp 3 Pleasant Historic District, Chopawamsic RDA Camp 4 The park also includes the Cabin Branch Pyrite Mine Historic District, listed on the National Register of Historic Places in 2002. The park itself was designed as the Prince William Forest Park Historic District in 2012. History The land on which Prince William Forest Park now resides was once used by Native Americans of the Archaic period. The Native Americans would use the area for hunting, gathering, and camping. Many artifacts from the archaic people have been found throughout the park. The park was erected where once the town of Batestown stood. It was an enclave for freed slaves named for Mary Bates, the matriarch of the community. Between 1933 and 1937, the Federal Government began implementing a Resettlement Administration program to form Chopawamsic Recreational Demonstration Area, where rural farmers were supposed to relocate for more fertile land. The RA bought 79 pieces of property in both Hickory Ridge and Batestown and condemned another 48, to form a new recreation area. However, the RA often made no effort to actually resettle the displaced residents. The area residents resisted the relocation efforts, sometimes retreating into the park boundaries to escape detection. This continued until the beginning of World War II, where the park was taken over by the Office of Strategic Services as a spy training ground. The park was surrounded by barbed wire and fences, and patrolled by dogs and armed guards. All remaining forty-four holdouts were evicted, some literally carried