The Top of the World Highway is a 127-kilometre (79 mi) long highway, beginning at a junction with the Taylor Highway near Jack Wade, Alaska traveling east to its terminus at the ferry terminal in West Dawson, Yukon, on the western banks of the Yukon River. The highway has been in existence since at least 1955 and is only open during the summer months. The entire portion of the highway in Yukon is also known as Yukon Highway 9. The Alaska portion is short and apparently not numbered.