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 ArticlesColorado's Collegiate Peaks: Leadville to Salida ItineraryBlaze Your Own Trail: Self-Guided Tours to Discovery in ColoradoColorado Scenic Byway: Peak to PeakMake Durango Your Home Base for Adventure in ColoradoThe Adventure is Yours in Colorado SpringsColorado Scenic Byway: Grand Mesa