Travelers are voting Round Valley Reservoir, Estling Lake and Lake Denmark as the best of 7 lakes near Long Valley. There are 12 lakes near Chester a city just 41 km from Long Valley and 12 lakes near Hackettstown which is 41 km distant. The most popular of these are Round Valley Reservoir near Chester and Estling Lake in Hackettstown. You can find 17 lakes in New Jersey and 2105 lakes in the country of United States. Our members favorite in New Jersey is Lake Carnegie and Lake Superior is the top pick in United States. Want more? Check out our map of lakes near Long Valley.