I'm a big fan of the Turtle-Flambeau flowage.  Nice (and free) campgrounds and the east side (go in at Murray's landing) is a voluntary no wake zone (which about 50% of the boaters I encounter pay attention to, but some is better than none).  Similar deal at the Willow Flowage, though it is smaller (and it tends to have a serious fluctuation in water levels--I've been there in the fall where it is basically a twisty river with wide sandy banks and lots of strange little bays where the deeper holes were).  Both are DNR owned land along the shores and islands.  The TFF has great wildlife (so does the Willow, but I see more at the TFF).  
I hear wolves three times on the TFF last September.
Enjoy the northern highlands and perhaps check out the Turtle or the Willow another time.