Colorado
- Alpine Loop
- Cache La Poudre-North Park Scenic and Historic Byway
- Collegiate Peaks Byway
- Colorado River Headwaters Byway
- Dinosaur Diamond Prehistoric Highway - Colorado
- Flat Tops Trail Scenic Byway
- Frontier Pathways Scenic and Historic Byway
- Gold Belt Tour Scenic and Historic Byway
- Grand Mesa Scenic and Historic Byway
- Guanella Pass Road
- Highway of Legends
- Lariat Loop Scenic and Historic Byway
- Los Caminos Antiguos
- Mount Evans Scenic Byway
- Pawnee Pioneer Trails
- Peak to Peak Scenic and Historic Byway
- San Juan Skyway
- Santa Fe Trail Scenic and Historic Byway - Colorado
- Silver Thread Scenic Byway
- South Platte River Trail
- Top of the Rockies
- Trail of the Ancients - Colorado
- Trail Ridge Road / Beaver Meadow Road
- Unaweep/Tabeguache Scenic and Historic Byway
- West Elk Loop