This was a quick stopover so I can't comment on the park overall.  It is nestled in the woods not far from the Indian Mounds area in Iowa.  I stayed at Little Paint Campground.  There are pit toilets, but the water said not for drinking.  A small river runs by the camp.  The park has hiking and equestrian trails.  There wasn't cellphone service at the campground, I had to drive out of the park and up the hill by the small church to get reception.  Water is available as you enter the park on the right side by the information stand.