Alaska is a U.S. territory on the U.S. West Coast's northwestern tip just across Asia's Bering Strait. British Columbia's Canadian province and Yukon territory border the state to the east and southeast. Attu Island is its most extreme western part and has a sea border with Russia (Chukotka Autonomous Okrug) across the Bering Strait to the west. The Chukchi and Beaufort seas are to the north— the Arctic Ocean's southern parts. The West and Southwest begins the Pacific Ocean. It is the largest sub-national division in the world and the largest state by area in the U.S. However, it is the third least populous and sparsely populated of the 50 U.S.; however, it is by far the most populous territory situated largely north of the 60th parallel in North America: its population — estimated at 738,432 by the U.S. Census Bureau in 2015; is more than four times that of Northern Canada and Greenland combined populations. About half of the residents of Alaska live within the metropolitan area of Anchorage. The economy of Alaska is dominated by the industries of fishing, natural gas and oil, which it has in abundance. The bases of the U.S. military and tourism are also an important part of the economy.
Cruise lines have created a summer tourism market in recent years, mainly connecting the Pacific Northwest to Southeast Alaska and, to a lesser extent, towns along the Gulf Coast of Alaska. Over the summer, Ketchikan's population will increase by more than 10,000 people, because up to four large cruise ships can dock at a time, debarking thousands of passengers.
Only air, foot, dogsled, or snowmachine can reach cities not served by road, sea, or river, accounting for Alaska's extremely well-developed bush air services— an Alaskan novelty. Most major airlines serve Anchorage and, to a lesser degree, Fairbanks. Air travel remains the most effective form of transportation in and out of the state due to limited road access. Recently, Anchorage completed comprehensive remodeling and expansion at Ted Stevens Anchorage International Airport to help accommodate the upsurge in tourism (almost 2 million tourists were received in 2012–2013).Read: Alaska Wikipedia Page