Lovely rock formations
We stayed here one night on our way to Oregon, on a Friday, August 1st. We got there just as the rangers were leaving and were told the sites were full but there was an overflow parking lot where we could stay. Then a ranger came out of the visitor center and said some one had just cancelled so we could have site #5. Huzzah!
The campground is small and there is no electricity. The scenery around you is stunning "Badlands" type scenery with wildflowers and blooming cactus along the road. The sites are crowded together but even though the reservations were full, a couple sites remained empty all night. That irks me because other people could have used them if they had been polite and canceled like the people who did so for site #5. The parking lot area was full too. Met some nice people at the campground though.
There is a nice drive into the hills of the "badlands" and a picnic area with disc golf. Also you can rent a teepee or a gypsy wagon for the night!