Top of the Rockies - Scenic and Historic Byway Top of the Rockies - Scenic and Historic Byway, Red Cliff, CO, 80461(800) 933-3901WebsiteOverviewDesignated a National Scenic Byway in 1998. Related ArticlesExplore 5 of Colorado’s Epic Mountain RangesFall Color Camper Van Road Trips: Part 1, Drives Near DenverA Day of Life on the Frontier in ColoradoColorado Scenic Byway: Gold Belt Tour & Cripple CreekBlaze Your Own Trail: Self-Guided Tours to Discovery in ColoradoRV Itinerary: Pawnee Pioneer Trails & Northeast Colorado