[Cheerio]

You think only FL has sinkholes?

Fair or not, there is no disputing Ackerman's passion for discovering and preserving caves. Since the early 1990s, Ackerman, 51, has been buying up property in Fillmore County, where one small town, Fountain, Minnesota, bills itself as the "sinkhole capital of the world."

sinkholes in minnesota

[driftdiver]

Underneath Florida is pretty much nothing but soft limestone. I’ve been diving in several of the natural springs here in Florida. It looks like swiss cheese and the rock crumbles in your hand. Of course what I was diving in was basically a giant sinkhole which went down about 120 feet beneath the surface.

What I couldn’t figure out is how the deer got down there to leave footprints in the rock.