Alberta Provincial Highway No. 13, commonly referred to as Highway 13, is an east–west highway through central Alberta. It runs from Alder Flats, 7 km (4 mi) west of Highway 22, to the Alberta-Saskatchewan border, where it becomes Saskatchewan Highway 14. Highway 13 is about 366 kilometres (227 mi) long. East of the City of Wetaskiwin, it generally parallels a Canadian Pacific rail line.