But they are charging RVs 30 a night for a spot. No direct services but the grounds does have flush toilets. There so is a dump somewhere. As national parks go we thought that was pretty expensive. The one thing it has going for it is location being directly across from the main Canyon. I don't know what the private parks cost but the shuttle system is very good. There is also some dispersed camping near by... we will do that next time.
Got one of two spaces for our 34 feet motorhome and enjoyed it so much that we extended our stay from one to two nights. Just beautifully hidden in the woods at the height of sunset point. No hookups but big restroom house with extra washroom and clean fireplaces. Just right in the middle of it.