what is best driving route in CA from mt shasta koa to the visalia/sequoia national park koa? seems there are a few options (part way i-5/then 99) and am unsure of what is best. also, any parts to avoid? thanks for your help. after visalia, heading to kingman, az.---thanks so much for your suggestions for this route of our trip. leaving mid august (startingin vanc wa-ending in suprise, az). -djtraveler