That's very interesting. Now I have a reason to go to Wisconsin.

I heard it's a secret underwater cheese factory !!!

shhhh, no one is supposed to know

I watched a show about these on the Discovery Channel. Why don't they just drain the stupid lake. Then they could get to the bottom of this, er, the lake or whatever.

yeah why could they just send down one of those little underwater thingy's and take lots of pictures.

visibility is far too poor for a rover.

Interesting, but they built mounds throughout the area, and contrary to popular belief, they used stones sometimes in their constructions.