Beautiful area, however I can’t say I would call this a campground, it’s an empty field that they charge you $40/night to park in, there’s no services or amenities, or even any kind of check-in or camp hosts, we talked to some other campers who seemed to know the area, they couldn’t believe we had paid online for it, they said no one ever goes through and monitors it, and you can just pull in and stay without paying :-/
One benefit is that it’s very close to Arches National park.