Nice place to stay if you are looking for first-come first serve sites!  The campground wasn't very busy which was nice because the sites were not overly secluded. Kinda a grassland area, but since it wasn't too busy and we were in the tent area it was a good fit for just the night.

The main attraction for visiting this park was a cave and cave tour- awesome!  Highly recommended :)  I actually retained a decent amount of the information we learned!  The tour was through but they kept it fun as well.  We were pleasantly surprised to see a plethora of bison (when we were in Custer that had rounded them all up so seeing them in the wild was nice!) 

*remember to wear something warm if you are doing a cave tour- it's chilly down there!