Cedar Rapids IA to Black River Falls, WI; Route etc

I was just curious. I lived for a while in Cedar Rapids as a kid - actually on Hwy 150 outside of Hiawatha (Center Pt Rd). And we often drove north to Minnesota to visit relatives.

Later living in Chicago I often drove the Chicago to Mpls route. If I had time the hills and rivers of SW Wisconsin were more interesting than the freeway.