From St. Louis:
Take I-44 to Rolla, then take Hwy 63 south to Hwy BB.
Take Hwy 60 to Cabool, then take Hwy 63 north to Hwy BB.
There is an outfitter in Dixon, MO named Boiling Springs Campground! Don't go there by mistake! Be wary when using GPS Navigation as it may provide a "creative" route.
When you approach BSR on Highway BB, you may be informed by the Google Maps lady that "you have arrived" when you clearly have not. Keep on going down Highway BB! You're almost here!