Reminds me of 'Swift Current Park', Scott. That was a local joke so I wouldn't expect anyone to get it, but when I was working in Swift Current, SK in 1982 there was one tree at the edge of a farmer's field north of town. It was the only tree around for miles, known by locals as 'Swift Current Park'. When I was there the government was paying the farmers to plant windrows of trees to reduce wind-blown topsoil erosion; when I drove through SK twenty years later I was amazed at the transformation.
Russ, as my grandmother would have said, most of Nebraska is flatter than piss on a plate - so when you get to the southern end of the state and this old volcano is staring down at you it seems rather incongruous!
Mike.