|Length||68.0 mi / 109.4 km|
|Time to Allow||Allow four hours to drive the byway or one day to experience the entire byway.|
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.