Greenland (both larger) are generally considered to be continental landmasses rather than islands. Three-quarters of Greenland is covered by the only permanent ice sheet outside Antarctica. With a population of about 56,480 (2013), it is the least densely populated territory in the world. About a third of the population live in Nuuk, the capital and largest city. The Arctic Umiaq Line ferry acts as a lifeline for western Greenland, connecting the various cities and settlements. Greenland has been inhabited off and on for at least the last 4,500 years by Arctic peoples whose forebears migrated there from what is now Canada.
Nuuk Airport between Kangerlussuaq and Nuuk, using planes much smaller than the charter planes, often requiring a hotel night in Kangerlussuaq. Nuuk airport has one asphalt runway (05/23) above sea level. The airport terminal and apron are built on a levelled platform on an undulating slope under the Quassussuaq mountain, with the runway platform artificially elevated to compensate for the scarp immediately to the west. The runway platform bed is composed of broken rock and rubble, topped with gravel, and protected by a low, wooden fence. The northern end of the runway is less than from the shore of Nuup Kangerlua fjord.