U.S. Route 550 (US 550) is a spur of U.S. Highway 50 that runs from Bernalillo, New Mexico to Montrose, Colorado in the western United States. The section from Silverton to Ouray is frequently called the Million Dollar Highway.
It is one of the roads on the Trails of the Ancients Byway, one of the designated New Mexico Scenic Byways.
View of Tertiary sediments of the San Juan Basin Badlands at southbound Mile Marker 111 in New Mexico (36.2558°N 107.6229°W).