New York State Route 22 is a north–south state highway in New York paralleling the eastern edge of the state, from the outskirts of New York City to the Canadian border. At almost 341 miles (549 km) in total length, it is the longest north-south route in the state and currently the third longest overall, after NY 5 and NY 17. Many of the state's major east-west roads intersect with Route 22 just before crossing the state line into the neighboring New England states. With the exception of its southern end, in the heavily-populated Bronx and lower Westchester County, as well as in the city of Plattsburgh near the northern end, almost all of Route 22 is a two-lane rural road that passes only through small villages and hamlets. The rural landscape off the road varies from horse country and views of the large reservoirs of the New York City watershed in the northern suburbs of city, to dairy farms further upstate in the hilly Taconics and Berkshires, to the undeveloped, heavily forested Adirondack Park along the shores of Lake Champlain. An 86-mile (138 km) section from Fort Ann to Keeseville is part of the All-American Road known as the Lakes to Locks Passage.