| Greenwell State Park | |
| Maryland State Park | |
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Tobacco barn in the park
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| Named for: John and Mary Greenwell | |
| Country | United States |
|---|---|
| State | Maryland |
| County | St. Mary's |
| Elevation | 30 ft (9 m) |
| Coordinates | 38°22′08″N 76°31′45″W / 38.36889°N 76.52917°WCoordinates: 38°22′08″N 76°31′45″W / 38.36889°N 76.52917°W |
| Area | 596 acres (241 ha) |
| Established | 1971 |
| Management | Maryland Department of Natural Resources |
| Website: Greenwell State Park | |
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.