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.
US Highway 550 in
Colorado is known as the "Million Dollar Highway" because its roadbed
was paved with low-grade gold ore.
