Spruce Run Recreation Area State Park

Spruce Run Recreation Area is a 1,290-acre (5.2 km²) New Jersey state recreation area located in Union Township and Clinton Township in Hunterdon County, New Jersey, United States. It encompasses the Spruce Run Reservoir that is used as a backup reservoir to protect the state from prolonged droughts. The reservoir is the third largest in the state, after Round Valley and Wanaque Reservoir. The reservoir is used for recreation purposes, including hunting, fishing, boating and swimming.