This is the only true primitive campground I've been to, but it was the most unbelievable experience! The "campground" is in the middle of nowhere and not the easiest to find, but once you get down that crazy desert road and up the little rise to the open area, it is exceptionally unique. The grounds sit nestled next to big rock formations with a wash going through that if you have a capable car - power + not too big - you can go exploring to the cool world hidden back there.
Within 5 minutes of unpacking a black (military?) helicopter came beating out from the wash and we felt like we were on a movie set. We had to bring a dish in order to have a campfire, and the toilets were pit - but hey, at least there were toilets.
The drive through the wash is so unique with the slanted walls of rock jetting out at you. Then parked the car and walked up to the wind caves and climbed around and looked out over the elephant leg-shaped mountains. It was beautiful and memorable and unique.