Didn't say where in CA you will start from. You will probably want to do a southern route (I-40, I-10) one way and a middle route (I-70 and I-80) in the other direction. 30 days sounds like a lot but there's lots of driving involved and many things to do and see. We've had RVs for over 30 yrs and as career military have traveled a lot and there are still things we want to go to. On the southern route, there's the Grand Canyon, Petrified Forest, Mesa Verde, Tucson, Carlsbad CavernsMemphis, Chattanooga, and Knoxville and the Smoky Mountains. On 70/80 Saint Lousis Arch, Denver, Salt Lake City, Yellow Stone Grand Tetons and Reno just to list a few.
