0 a territory (= a large area of a country that has some local government but less independence than a province or a state) of northwestern Canada, whose capital city is Whitehorse:
They found several hundred fragments of a meteor that crashed in southern Yukon at Tagish Lake on Jan. 18, 2000.
areas of protected wilderness along the Rockies, from Yellowstone National Park in northern Wyoming to the Yukon, in northern Canada
During much of this era, a cold, dry grassland stretched across the Northern Hemisphere from eastern Europe into Alaska and the Yukon.
