Swartswood State Park is a 3,460-acre (14.0 km2) protected area located in the Swartswood section of Stillwater and Hampton townships in Sussex County, New Jersey, in the United States. Established in 1915 by the state's Forest Park Reservation Commission, it was the first state park established by the state of New Jersey for the purposes of recreation at the state's third-largest freshwater lake. Today, Swartswood State Park is operated and maintained by the New Jersey Division of Parks and Forestry. (Ref: https://en.wikipedia.org/wiki/Swartswood_State_Park)