North American Arctic

Map of the Arctic Circle and July isotherm. The North American Arctic is on the left

Main article: Arctic

The North American Arctic comprises the northern portions of Alaska (USA), Northern Canada and Greenland. Major bodies of water include the Arctic Ocean, Hudson Bay, the Gulf of Alaska and North Atlantic Ocean. The western limit is the Seward Peninsula and the Bering Strait. The southern limit is the Arctic Circle latitude of 66° 33’N, which is the approximate limit of the midnight sun and the polar night.

The region is defined by environmental limits where the average temperature for the warmest month (July) is below 10 °C (50 °F). The northernmost tree line roughly follows the isotherm at the boundary of this region. The area has tundra and polar vegetation.

Lands

Name of land (above)	Country (below)
Alaska	Aleutian Islands	Canadian Arctic Archipelago	Diomede Islands	Newfoundland and Labrador	Northwest Territories	Nunavik	Nunavut	Yukon
USA	USA	Canada	USA/Russia	Canada	Canada	Canada	Canada	Canada

See also

• Arctic

Gallery

• 
  Artificially coloured topographical map of the Arctic region
• 
  Icebergs at Cape York, Greenland.

External links

• Arctic Institute of North America website