The Million Dollar Highway in Colorado is a scenic and treacherous stretch of U.S. Route 550 that runs through the San Juan Mountains between the towns of Ouray and Silverton. Known for its breathtaking views, the highway features dramatic cliffs, sharp hairpin turns, and steep drop-offs, often with no guardrails. It was constructed in the late 19th century to serve the area's mining industry and offers travelers a thrilling drive through some of the state's most stunning landscapes. The origin of its name is debated, with theories ranging from the cost of its construction to the high value of ore-containing fill dirt used in the road.