BTW, Rocktown is right near Ellison's Cave, home to Fantastic Pit. At almost 600' deep, it's the deepest in the USA. Just down the road is Little River Canyon, the deepest canyon east of the Mississippi River. It's a cool area, but don't tell anyone.
Here are some nicely done photos from Ellison's, and other area caves. Yeah, I know, they're digital, but skillfully done.