The Canadian territory of Yukon shares its entire border with the U.S. state of Alaska, beginning at the Beaufort Sea at 69°39′N 141°00′W﻿ / ﻿69.650°N 141.000°W﻿ / 69.650; -141.000 and proceeds southwards along the 141st meridian west. At 60°18′N, the border proceeds away from the 141st meridian west in a southeastward direction, following the St. Elias Mountains. South of the 60th parallel north, the border continues into British Columbia.[55]