New Jersey Route 15 is a state highway located in northern New Jersey. It runs approximately 20 miles, connecting the towns of Jefferson Township and Montville. The route serves as a vital link for local traffic and provides access to various recreational areas, including Lake Hopatcong. The highway is primarily a two-lane road, with some sections expanding to four lanes. It intersects with several major roads, including U.S. Route 206 and Interstate 80. Route 15 is known for its scenic views, particularly as it passes through the Highlands region of New Jersey.