U.S. Route 209 (US 209) is a 211.74-mile (340.76 km) long U.S. Highway in the states of Pennsylvania and New York. Although the route is a spur of US 9, US 209 never intersects US 9, coming within five miles of the route and making the short connection via New York State Route 199 (NY 199). The southern terminus of the route is at Pennsylvania Route 147 (PA 147) in Millersburg, Pennsylvania. The northern terminus is at US 9W north of Kingston in Ulster, New York, where the road continues east as NY 199.
In Pennsylvania, the highway travels through the length of the Delaware Water Gap National Recreation Area, along the southern part of the Poconos in Monroe and Carbon counties through Jim Thorpe and along parts of the defunct historic Lehigh Canal and Lehigh Valley Railroad then over the divide near Nesquehoning into the Schuylkill Valley along Panther Creek. For part of its route in New York, US 209 runs alongside the defunct Delaware and Hudson Canal, which ran from Port Jervis to Kingston, in each case, following the old land road connections connecting the anthracite coal fields of Northeastern Pennsylvania with the industries and heating customers in New York City.
