if you are familiar with wazee.. take wazee times 10.
Do a google earth for Ironton, MN (sister city of Crosby, Crosby is the bigger town of the two) and then take a look at all the water just to the north, north-west of town.. those are all abondoned mines... mostly in the hundreds of feet deep, some over 350'. The water is clear, and if it isn't, then a different lake a short distance away is. The area is nice for camping, wooded, hilly, etc. The lakes can all offer something different.. drops, trees, rocks, sunken junk, etc. There is a camp ground but a lot of folks just camp near the lakes.
I really enjoy the area, and trying to get there labor day weekend. I think Ceason from the board here is working on doing the same.
Fred