Hee. I know about the quarries (actually referred to as ore pits in that neck of the woods). I used to know how to find the best one near Hibbing, but even if I remembered, that info is well out of date. I'm going to be wearing spontaneous swimming clothes of one kind or another under my bike clothes in case we run across one.

I notice that the town of Gilbert has rechristened one of its old ore pits "Lake Ore-be-Gone."