ALBERTA HIGHWAY 4

'Highway 4' forms the most southern leg of the CANAMEX Corridor highway system in Alberta. It is a northern extension of Interstate 15 and is an important route for travellers heading to the United States, connecting to cities such as Salt Lake City, Utah and Las Vegas, Nevada. Between Lethbridge and Stirling, it is also known as the Red Coat Trail (which follows Highway 61 east towards the Saskatchewan border).
Starting as an extension of Scenic Drive in Lethbridge, it travels in a southeast direction to the border crossing town of Coutts, Alberta, where it continues into Montana as Interstate 15.
Highway 4 is in length. Although the entire route is a 4-lane divided highway, it does not have fully controlled access. Nonetheless, the speed limit outside of urban areas is 110 km/h (70 mph).