About
LocationCalifornia MD
SizeLarge — multiple days
Acres2,200 acres

St. Mary's River State Park is a Maryland state park located in St. Mary's County, Maryland. The park consists of two sites: one encompasses 250-acre (100 ha) St. Mary's Lake; the second covers 2,200 acres (890 ha) and is largely undeveloped. The park is managed by the Maryland Department of Natural Resources.

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