The Alaska Highway (Alcan) crosses into the Yukon  some 1,000 kilometers (620 miles) northwest of Dawson Creek, then ducks back in and out of British Columbia  a couple more times before crossing into the Yukon again and reaching the highway town of Watson Lake . From this point, travelers either continue east to the territorial capital or complete the loop through northern British Columbia by taking the Cassiar Highway (Hwy. 37) south to Meziadin Junction.
Over the years, the Alaska Highway has been shortened by straightening some sections and cutting out big bends completely. Mileage posts in British Columbia have been replaced to reflect these new distances, but those on the Yukon side haven’t—so you’ll see a 40-kilometer (25-mile) discrepancy beyond the border.