Should try Quartzsite, Az. for boondocking. Loved Shady Acres Campground-Mobile, Ala.-Cajun Palms, Henderson, La.(had seafood restaurant delivery to campground), Mustang Hollow Campground, Mathis, Tx.(we had a site overlooking Lake Corpus Christi) and they make home made pizza in their office. Pontchartrain Landing Campground, New Orleans, La. These campgrounds we liked so much we stayed a couple nights extra.
Forgot to mention Williams, Az. off Rt. 66/40-old time mining town which also has a train-Grand Canyon Railway-does a round trip to the Grand Canyon in older style train. There are 3 campgrounds in area.