The New York - New Jersey Trail Conference (NYNJTC) is a volunteer-based federation of approximately 10,000 individual members and about 100 member organizations (mostly hiking clubs and environmental organizations). The conference coordinates the maintenance of 2,000 miles of foot trails around the New York metropolitan area, from the Delaware Water Gap, north to beyond the Catskill Mountains, including the Appalachian Trail through New York and New Jersey. It also works to protect open space and publishes books and trail maps. The organization's headquarters are at 600 Ramapo Valley Road, Mahwah, New Jersey.