Circle of Pines KOA Williams Arizona, lovely campground large and clean, good access to Sedona, Grand Canyon South Rim, and lots of other fun places search Bearazona. Salt Lake City KOA was very nice, if you can take a day trip to Antelope Island to see the Buffalo. Circus Circus RV Park in Las Vegas, indoor amusement park, and the daily circus on property. If you do Las Vegas take the kids to the Atomic Museum on the grounds of UNLV. Fantastic display of old time atomic research and a new display on Area 51. A long time ago we stayed at Rubies Campground at Bryce, rustic but nice location, it's on my list of places to return to with the grandkids.