Take a detour to Sudbury, On. We have errr... lots of rock, a big mining stack and me. (I think I'm the attraction out of that list!)
My wife and I did the drive around Lake Superior a couple of years back. If you want to travel a little higher Marquette and Big Bay Point are quite interesting, the movie "Anatomy of a Murder" with James Stewart was inspired by real events around there and much of it filmed in the area.
Dave