On one trip we found a very very old penny in the dirt at the end of a portage.  I forget the exact date, but I think it was 1910 or so.  I found an old Buickthat was almost that old, but couldn't haul it out.  If anyone found a very nice rain parka at Prairie Portage in late June 2007, I hope they enjoyed it.  It was brand new and I didn't realize that I had left it until that night at camp.  My brother left his PFD at an island where we ate lunch last summer.  We didn't realize it until we hit camp, about 4 miles and two portages later.  It was the first day of a 9-day trip, so we couldn't go on without it.  He and I were the strongest paddlers, so we went back and got it. Fortunately we had made camp early.