Sullivan

Sullivan, county, southeastern New York state, U.S., bordered by Pennsylvania to the southwest (the Delaware River constituting the boundary), the Catskill Mountains to the north, and the Shawangunk Mountains to the southeast. The rolling hills of the southwest rise to the mountainous areas of the north and southeast. The county is drained by the Tenmile, Mongaup, and Neversink rivers. Other bodies of water include Neversink, Toronto, and Swinging Bridge reservoirs. Recreational areas include Catskill Park...