Highway 13 is a highway in the Canadian province of Saskatchewan. It runs from the Alberta border (continuing westward as Alberta Highway 501) until it transitions into Highway 2 at the Manitoba border near Antler. Highway 13 is about 676 km (420 mi.) long.Highway 13 passes through Shaunavon, Assiniboia, Weyburn, Redvers and Carlyle. It is also referred to as the Red Coat Trail, as much of its length follows the route of the original historic path.