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 ArticlesFall Color Camper Van Road Trips: Part 1, Drives Near Denver10 Places to See Colorado's Fall ColorFall Color Camper Van Road Trips: Part 2, Mountains & MesasFind Your Perfect Fall Adventure in ColoradoFall Drives: 5 Color-Drenched Colorado Scenic BywaysA Day of Life on the Frontier in Colorado