The Canadian Arctic tundra is a biogeographic designation for Northern Canada's terrain generally lying north of the tree line or boreal forest, that corresponds with the Scandinavian Alpine tundra to the east and the Siberian Arctic tundra to the west inside the circumpolar tundra belt of the Northern Hemisphere. Canada's tundra is characterized by extreme climatic conditions with year-round frozen grounds, long and cold winters, a very short growing season and low precipitation rates. Tundra is predominant in: