Greenwell State Park

Greenwell State Park
Tobacco barn in the park
Greenwell State Park
Location in Maryland
LocationSt. Mary's County, Maryland, United States
Nearest townCalifornia, Maryland
Coordinates38°22′08″N 76°31′45″W / 38.36889°N 76.52917°W / 38.36889; -76.52917
Area596 acres (241 ha)
Elevation30 ft (9.1 m)
Established1971
Administered byMaryland Department of Natural Resources
DesignationMaryland state park
Named forJohn and Mary Greenwell
WebsiteOfficial website

Greenwell State Park is a public recreation area located on the Patuxent River in St. Mary's County, Maryland. The state park features the historic Rosedale Manor House as well as the Bonds-Simms tobacco barns complex. Park activities include hiking, cycling, horseback riding, fishing, picnicking, hunting, swimming, and canoeing.