| St. Mary's River State Park | |
| Maryland State Park | |
| Country | United States |
|---|---|
| State | Maryland |
| County | St. Mary's |
| Elevation | 98 ft (30 m) |
| Coordinates | 38°16′30″N 76°31′10″W / 38.27500°N 76.51944°WCoordinates: 38°16′30″N 76°31′10″W / 38.27500°N 76.51944°W |
| Area | 2,643 acres (1,070 ha) |
| - Wildlands | 1,445 acres (585 ha) |
| Established | Unspecified |
| Management | Maryland Department of Natural Resources |
| Website: St. Mary's River State Park | |
St. Mary's River State Park is a Maryland state park located in California, Maryland. The park consists of two sites: one encompasses the 250-acre (100 ha) St. Mary's Lake; the second covers 2,200 acres (890 ha) and is largely undeveloped. The park features picnicking, a boat launch, boating (electric motor only), flat water canoeing, fishing, and hunting. A 7.5-mile (12.1 km) trail around St. Mary's Lake is used for hiking, horseback riding, and mountain biking.