The Inuvialuit Settlement Region (ISR), located in Canada’s western Arctic, was designated in 1984 in the Inuvialuit Final Agreement by the Government of Canada for the Inuvialuit people. It spans , mostly above the tree line, and includes several subregions: the Beaufort Sea, the Mackenzie River delta, the northern portion of Yukon ("Yukon North Slope"), the northwest portion of Northwest Territories, and the western Canadian Arctic Islands. The ISR includes both Crown Lands and Inuvialuit Private Lands.