Alaska is a U.S. state on the northwest extremity of the country's West Coast, just across the Bering Strait from Asia. An exclave of the U.S., it borders the Canadian province of British Columbia and territory of Yukon to the east and southeast and has a maritime border with Russia's Chukotka Autonomous Okrug to the west. Alaska is by far the largest U.S. state by area, comprising more total area than the next three largest states Texas, California, and Montana combined, and the seventh-largest subnational division in the world.

Yukon, (also called Yukon Territory and referred to by some as the Yukon) is the smallest and westernmost of Canada's three territories. It also is the least populated province or territory in Canada, with a population of 35,874 people as of the 2016 Census. The territory is the approximate shape of a right triangle, bordering the U.S. state of Alaska to the west and northwest, the Northwest Territories to the east and British Columbia to the south.