Framed by the Cushetunk Mountains and the deep blue waters of Round Valley Reservoir, this vast landscape invites visitors to spend the day outdoors. Boating, fishing, picnicking, camping, and seasonal swimming make it a favorite for warm-weather exploration, while quiet coves and open water create a sense of space that feels far removed from everyday life.
Covering more than 2,300 acres, Round Valley is New Jersey’s largest reservoir and one of its deepest. It is also the state’s only park offering true wilderness camping, with remote campsites accessible by boat or a challenging hike along rugged trails. Open year-round, the park shifts with the seasons, drawing hikers for fall foliage, birders in spring, and cross-country skiers and sledders when winter arrives. However you visit, Round Valley offers the chance to experience the NJ Highlands at its most expansive and untamed.