Central Ohio to Central Arizona

In AZ, there's Canyon de Chelly (Canyon de "Shay"), which is a national monument in Chinle, AZ in NE Arizona, not far from the Four Corners' monument on US 160. There's also Mesa Verde NP outside Cortez, CO, between Durango (the narrow gauge railroad to Silverton - a do not miss) and Cortez. There are all the southern Utah national parks and monuments, as well as Monument Valley on the border of SE Utah and NE Arizona. You might like to see the southern side of the Grand Canyon, too, since it's not too far off the track to Phoenix via Flagstaff and US 89 from Page, where you have Lake Powell, which is a national recreation area and has one of the nicest government run RV parks on the shore of the lake. North of Flagstaff, a bit on US 89 are the Sunset Crater and Wapiti National Forests/campgrounds, which have no hookups, but have concrete pads and are beautiful. Just a mile or so off the highway and only a few minutes from Flagstaff. You can stay at all of these National Forest, Monuments, Recreation Areas and Parks for half price with your National Park 62+ $10 (one time only) pass. And they aren't expensive to begin with!