The California Association of RV Parks & Campgrounds (CalARVC) has a great 80-page guide with information on nearly 800 RV parks and campgrounds in the Golden State. This is a must have for any California RV camper! The guide includes photos, maps, amenity grids, and more.
You can download the PDF here: Camp-California! The Camper’s Guide to California! (It’s big – 52MB)
You can also order one here: