Kangerlussuaq is a settlement in western Greenland in the Qeqqata municipality located at the head of the fjord of the same name (Danish: Søndre Strømfjord). It is Greenland's main air transport hub and the site of Greenland's largest commercial airport. The airport dates from American settlement during and after World War II, when the site was known as Bluie West-8 and Sondrestrom Air Base. The Kangerlussuaq area is also home to Greenland's most diverse terrestrial fauna, including muskoxen, caribou, and gyrfalcons. The settlement's economy and population of 512 is almost entirely reliant on the airport and tourist industry.