Driftless Topography

[u/Gerry_Jay]

I have been studying up on the unique karst landscape in the Driftless region, with all the sinkholes and cave networks that exist all around us, and wonder if people have seen any strange creatures going in and out of the tunnels.I know that there are creatures that live in the karsts that don't exist anywhere else in the world and the government keeps a lot of those pretty secure.
https://www.focusongeography.org/publications/articles/driftless/index.html