Schooley's or, officially, Schooleys Mountain is a mountain ridge in northern New Jersey that stretches from Lake Hopatcong in the north to Hampton in the south. It is centrally located within the southern Highlands, positioned almost equidistantly from the Kittatinny Valley in the west and the Piedmont plateau in the east. Schooley's Mountain is also one of …Schooley's or, officially, Schooleys Mountain is a mountain ridge in northern New Jersey that stretches from Lake Hopatcong in the north to Hampton in the south. It is centrally located within the southern Highlands, positioned almost equidistantly from the Kittatinny Valley in the west and the Piedmont plateau in the east. Schooley's Mountain is also one of the largest ridges in a group of geologically similar and parallel mountains, which include Allamuchy Mountain, Pohatcong Mountain, Scotts Mountain, and Jenny Jump Mountain.