Check out http://dogfriendly.com/ . They have some great books that will help find camping/hiking/RV parks that are dog friendly. They also show the dog regulations in many federal, state and local campgrounds.

This one looks good!
I ordered California and the West Dog Travel Guide, 790 pages of small type with almost every city and park listed. It will be invaluable in planning our summer trip to Glacier National Park.
They somehow cover every state at DogFriendly.com with lots of information you will find helpful. Books are reasonable, ship very quickly and there is online information also.

