New York State Route 42 (NY 42) is a north–south, discontinuous state highway in the Catskill Mountains region of New York in the United States. The southernmost of the highway's two segments begins at an intersection with U.S. Route 6 (US 6) and US 209 in Port Jervis and ends at a junction with NY 55 near the Rondout Reservoir in Neversink. NY 42's northern segment runs from NY 28 in Shandaken to NY 23A in Lexington. The southern segment is located in Orange County and Sullivan County, while the northern segment is in Ulster County and Greene County. NY 42 is one of three state routes in New York that is split into two segments; the others are NY 24 and NY 878, both located on Long Island. Like NY 24, NY 42 was a continuous route when it was assigned as part of the 1930 renumbering of state highways in New York. The portion of the route between Neversink and Shandaken was eliminated in the mid-1930s. Route description Southern segment Port Jervis to Forestburgh Pond NY 42 begins at an intersection with US 6 and US 209 (Pike Street / East Main Street) in the city of Port Jervis. NY 42 proceeds northwestward, immediately concurrent with NY 97 on West Main Street, a two-lane commercial street through Port Jervis. After passing far east of the Port Jervis station on Metro-North Railroad's Port Jervis Line, NY 42 and NY 97 break off West Main Street for Park Avenue, paralleling the Norfolk Southern Southern Tier Line (ex-Erie Railroad Delaware Division tracks) and Elks–Brox Memorial Park. NY 42/NY 97 continue northwest through Port Jervis as a two-lane wooded road before crossing into the town of Deerpark. In Deerpark, NY 42 and NY 97 are a two-lane commercial roadway alongside the Southern Tier Line, entering the hamlet of Sparrowbush. In Sparrowbush, NY 42 and NY 97 becomes residential, accessing Eddy Farm Golf to the south, before entering the center of the hamlet, where NY 97 continues northwest on the right-of-way, while NY 42 proceeds north on a new roadway. NY 42 proceeds northward a two-lane residential street through Sparrowbush, soon passing Old Cahoonzie Road to the south. Running up a mountainside, the route parallels NY 97, which runs to the west, north out of Sparrowbush. Through the town of Deerpark, NY 42 continues as a two-lane residential street, intersecting with Old Cahoonzie