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 Articles150 Ways to Celebrate Colorado: Spring & SummerColorado Scenic Byway: Tracks Across Borders Colorado Scenic Byway: Trail of the Ancients & Mesa Verde National ParkExplore 5 of Colorado’s Epic Mountain RangesColorado Scenic Byway: Silver ThreadCruise-Worthy Curves: Colorado Motorcycle Touring