Primitive campground, with no water, no designated sites, no RV hook-ups, and no fee. So bring your own water (you can fill up at the visitor center or in Wall), and enjoy the peaceful open space!
The campground is accessed via Sage Creek Rd, which is a maintained gravel road that can become a little rough after rain. There are a few picnic tables with shades over them, and two pit toilets. Your neighbors will be other solitude seekers, the local bison herd, a killer sunset, more stars in the sky than your mind can handle. The night will be filled with the sounds of coyotes, the wind blowing through the hills of prairie grasses, and the bison chomping their midnight snack. It's a magical place.
I've camped here in more than one season, and had a memorable experience each time.