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 Drives: 5 Color-Drenched Colorado Scenic Byways10 Places to See Colorado's Fall ColorColorado Scenic Byway: Grand MesaFall Color Camper Van Road Trips: Part 2, Mountains & MesasFind Your Perfect Fall Adventure in ColoradoFall Color Camper Van Road Trips: Part 1, Drives Near Denver