A journey into southeastern Minnesota’s geological basement reveals that building soil health can help make “clear” and “clean” equal the same thing.
More Information:
- LSP’s Soil Health web page
- Minnesota Conservation Volunteer article: “The Farmer Who Went Underground”
- In July 2022, Aaron Bishop shot this video of flooding in Niagara Cave shortly after a rainstorm.
- Ear to the Ground podcast episode 231: Caves Don’t Lie
You can find LSP Ear to the Ground podcast episodes on Spotify, Stitcher, iTunes, and other podcast platforms.

Cavers explore southeastern Minnesota’s karst geology. (Photo by Martin Larsen)