look at this site and click on photo 2
http://www.singinghillsrvpark.com/
This CG is outside Mammoth Caves and we actually stayed in that exact spot but that TM isn't ours so far as I know. There was a Class A parked next to us the whole time.
It's actually a good CG if you are doing the caves, very nice people running the place and a good fishing pond for the kids there.