The Sagavanirktok River is a river in Alaska's North Slope.[1] It is approximately 180 miles long, and originates on the north slope of the Brooks Range, flowing north to the Beaufort Sea near Prudhoe Bay. The Trans-Alaska Pipeline System and Dalton Highway roughly parallel it from Atigun Pass to Deadhorse, Alaska. Also, a glaciation happened approximately at the same time as the Illinoian Stage of central North America at the Sagavanirktok River.