From Denver, the original routing split several ways to cross the rockies via Berthoud Pass, Tennessee Pass, Cochetopa Pass, and Monarch Pass. All routings converged in Grand Junction, Colorado and continued into Utah through Green River, Utah and Salt Lake City. Past Salt Lake City, the routing moved southward across the Salt Lake Desert on the same routing as the Lincoln Highway through Iosepa, Utah, Orr's Ranch, Fish Springs Ranch, and Ibapah, Utah.