Let the road set the pace.
This byway will lead you on a delightful adventure as it winds its way around spiraling pig-tail shaped bridges, through six rock tunnels, among towering granite pinnacles and over pristine, pine-clad mountains. Highlights include Mt. Rushmore, Harney Peak, Sylvan Lake, the Needle s Eye and Cathedral Spires rock formations.

Public Domain. Photo by Stephen Keegan · Photo credits

Public Domain. Photo by Stephen Keegan · Photo credits
Before you drive
Make it a satisfying day
Choose a realistic section, then allow time for viewpoints, a town stop and breaks. Scenic mileage rarely tells the whole story of how long an outing will take.
Match the road to your vehicle
Check the exact roads for your car, RV or motorcoach. Tunnel dimensions, turning space, grades and road surfaces can matter as much as distance.
Route overview and designation: Federal Highway Administration, America’s Byways. Research: October 2026. This is a travel idea, not live navigation or a guarantee that the full route is open. Confirm exact roads, current conditions, parking and any attraction reservations before departure.
