Cumbres Pass is a 10,015 ft. pass between Antonito, Colorado and Chama, New Mexico. The pass is traversed by State Highway 17 and the Cumbres and Toltec Scenic Railroad (originally built as the San Juan Extension of the Denver and Rio Grande Railroad that ran to Durango, Colorado). From the headwaters of the Rio Grande Wolf Creek Pass is the route of U.S. Highway 160 between Del Norte, Colorado and Pagosa Springs, Colorado, while Slumgullion Pass is the route of State Highway 149 between U.S. Highway 160 and Lake City, Colorado. Stony Pass, sometimes spelled Stoney Pass, an historic wagon road to the mining camps of the San Juans, is now a jeep trail. At the north end of the valley, North Pass is the route of State Highway 114 between Saguache, Colorado and Gunnison, Colorado, bypassing the original route over Cochetopa Pass, now a county road.