You never said if you want a full hookup or dry camping in a National Park?
I live in Phoenix and have used this campground a few times and we love it.
I use a great campground in Williams AZ called Grans Canyon Railway and Hotel. Yes, It has a big campground that is an easy day trip to the South rim of the Grand Canyon or you can get tickets on the railroad that leaves the campground. (Roundtrip day)
RV Park Location | Grand Canyon Railway & Hotel
It is located on I-40 between Flagstaff and Kingman.
The campground /Hotel has a great restaurant or you can go downtown and eat if you want.
2012 Georgetown XL - 378TS 73K miles
Life is a journey, not a destination