Camp on the prairie, and see bison
I loved it. The prairie isn’t what you think, and it certainly isn't boring; miles, and miles, of pre-Colombian prairie, with grass (of course), tree covered hills, and the Niobrara River can be seen from the overlook that is this campsite.. All can be explored on foot, with day hikes. Wild, and captive, bison are nearby. None of them have access to this campsite, though.
A great host awaits, with hands-on bison tours, firewood, and lots of information on the local wilderness. Make sure you take the bison tour with a real bison rancher.