You might want to "Try the Way I Go",,, You can head from California, straight up to Washington state. Heading for Clarkston-Lewiston into Idaho,,,, Up Lolo and over a Pass, BEAUTIFUL canyon (cooler temps.)all the way into Montana... heading thru Missoula and Helena and UP Above inner-state 90 is the OLD highway that takes you straight into South Dakota(20? 212?) goes into Bell F.. So. Dakota,,, ending up Right above Sturgis........ I find the old Mom and Pops motels on That Above highway at around 40$ and Less a night OR you'll find plenty of open camping along that way.. I Hate the Major Highways:lero and that Route will by-passes them..
signed....BUBBIE
Look at Your map and see that Route... NICE!