A map of the Canadian Prairies showing the Districts of the North-West Territories in 1882. A map of the Canadian Prairies showing the Districts of the North-West Territories in 1886.
On the south, the international boundary, 49° north.
On the east, the line between the 10th and 11th ranges west of the fourth meridian of the Dominion Land Survey. This line, now designated Range Road 110, has jogs at each correction line. It crosses Highway 16 between Innisfree and Minburn and Highway 1 between Tilley and Suffield.
On the north, the 18th correction line, approximately 55° north, now designated Township Road 710.
On the west, the British Columbia boundary: the height of land of Pacific Ocean drainage and the 120th meridian west.