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 Articles4 Best Places to Stay in Colorado for History LoversTouring Northeast Colorado8 Places to See Colorado Wildlife Without Leaving Your CarColorado Scenic Byway: Unaweep TabeguacheFall Color Camper Van Road Trips: Part 1, Drives Near DenverNative American History in Southwest Colorado