In the wide open landscape of the Southwest (excluding southern CA), sunrise and sunset are the most beautiful, magical times due to the lighting on the rocky outcroppings, canyon walls, etc. For this reason I recommend staying inside or as close as possible to the Parks. Check out Trailer Village inside Grand Canyon NP, Ruby's just outside Bryce, Goulding's just across the highway from Monument Valley...to get you started. Also check www.rvparkreviews.com
Expect CA coast campgrounds to be quite expensive.
Make reservations! These Parks and other areas in the Southwest are very busy in the summer!
There are soooo many other sights to add to your list. Have a look at grandcircle.org.
Be sure to know the pet rules at the Nat'l Parks...like dogs not allowed on trails.
Do you have an America The Beautiful Pass?
