OK, here's a few suggestions. In Arizona, we stayed in Williams at Circle Pines KOA. They have an indoor pool and hot tubs. We visited the Grand Canyon from there. We then went south to Cottonwood and stayed at Dead Horse Ranch State Park. They have water and electric. You are right next to Tuzigoot (Indian ruins from 1300 AD ).You are also close to Jerome, an old mining town. In Jerome we toured the mansion of the former mine owner and the Gold King Mine which is made up to look like an old mining town with wold boros wandering the streets. We also went to Ft Verde which was an Army post in the 1880's. Several restored buildings. We then went to the northeast corner of the state and visited the Hubbell Trading Post and Canyon de Chelly.
In Yellowstone, we stayed in Madison which was centrally located. No hookups and no services at the campground.The campground at Mammoth Hot Springs looked like the sites were a little more isolated,plus you're close to all the services in Mammoth like restaurants,gas station,post office, stores and visitor center.You are also about 5 miles south of Gardiner, Mt where there are grocery stores,gas, restaurants etc. Be sure to visit the Inn at Old Faithful. It was built in 1903 and is the largest log structure in the world. The lobby is gorgeous.We ate in the dinning room. The food was excellent and the prices were reasonable. Fishing Bridge is the only campground in the park with hookups but is like a parking lot. Yellowstone is as big as the state of Rhode Island so you will spend alot of time driving. We stayed 4 nights and could have used 2 more. If you are 62 or over, get the America the Beautiful Pass.It's $10 if you buy it in a National Park or $20 if you send for it. It allows you to get into any National Park or Historic site for free and 1/2 price off camping at all federal campgrounds.Once you establish your route,I may be able to advise you on other places to see or stay. We usually stay in state parks along the way because they are generally cheaper than most private campgrounds. In Nebraska, we stayed at Wabaunsie State Park. $16 a night with electric hookups. In Missouri,we stayed at Pershing State Park for $19 a night with electric.
