Last mile of gravel going in to site was pretty rough.  Sign indicated that the road would be impassible if wet/raining.  Site was flat and gravel.  Spot for tents just up the hill.  No fire ring, no picnic table, no hook-ups or garbage.  Dispersed camping / boondocking.  No fee.   Fantastic view of the country-side including Devil's Tower.  Site appeared secluded and unused.  Another vehicle with a tent did join us during the night, but there was room for both of us!