New York State Route 86 (NY 86) is a 39.11-mile (62.94 km) long state highway located within Adirondack Park in northern New York, in the United States, linking Franklin County to Essex County. The western terminus of the route is at NY 30 in the hamlet of Paul Smiths. The eastern terminus is at NY 9N in Jay. Although largely a two-lane road, NY 86 is one of only two east–west highways in the High Peaks area of the Adirondack Park, providing a major link between hamlets and tourist destinations.

New York State Route 9N (NY 9N) is a north–south state highway in northeastern New York in the United States. It extends from an intersection with U.S. Route 9 (US 9), NY 29, and NY 50 in the city of Saratoga Springs to a junction with US 9 and NY 22 in the Clinton County hamlet of Keeseville. At 143.49 miles (230.92 km) in total length, NY 9N is the longest letter-suffixed route in the state. It is concurrent with its parent route for 1 mile (1.6 km) in the village of Lake George and for three blocks in the hamlet of Elizabethtown.