Always choose the scenic route. From SC, check out Zion, Bryce, then if you need to slab it, 70 isn't too bad. Go through Denver and east to sterling take in car henge, and don't miss the Mammoh site in Hot Springs SD. From there Sturgis is just a couple of hour and you'll go past Wind cave, a mess of buffalo, even Crazyhorse.
Anyone from So Cal riding to Sturgis ?
What is the best route going up there & back ?
Slabing it or scenic ?