If you can’t read the sign clearly, it says Rib Mountain is “probably the highest elevation in Wsconsin”.  The card pre-dates Google, so we will forgive the makers, but our own search has Rib Mountain at 1924′ but Timms Hill at 1952′.  (Maybe the folks at Timms Hill did some renovation work?)  Unused “local” card S-23948-1 (W-201).  Grade: 1