Alaska is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is considered to be the northernmost, westernmost, and easternmost state in the United States. It is a semi-exclave of the U.S., bordering the Canadian territory of Yukon and the province of British Columbia to the east. It shares a western maritime border in the Bering Strait with Russia’s Chukotka Autonomous Okrug, and is closer to another continent (Asia) than any U.S. state. The Chukchi and Beaufort Seas of the Arctic Ocean lie to the north, and the Pacific Ocean to the south.