We came in late, and although its seems like there are only about 10 designated sites with tables and the like, there's a bit off allowance for overflow and no one seemed to mind.  Got to the Badlands just in time to see it in the fading light while our eardrums got used to the silence. After that we had to force our way though a herd of bufallo, but they weren't hostile or scared. It's a long trek to get back there, just don't get in a hurry.

There is one vault toilet and some trash cans scattered about.