I've always known US 41 as the Dixie Highway. It runs up the eastern third of Wisconsin to "Up North." During deer hunting season, it was (in 1965) and probably still is bumper-to-bumper crowded with traffic going north on Friday nights, with cars full of men with guns and brandy. And on Sunday night, it was bumper-to-bumper going south, with some cars with deer carcasses on top (and a lot less brandy).
I lived in Racine in Southeast Wisconsin and went to school in Milwaukee. We had wooded areas nearby and we loved them, but mostly they were areas where hunting was not allowed. So people went "up North" on the Dixie Highway to get their deer. And the venison was delicious. I apologize to my wife and all you other vegivores.
I finally drove the Dixie Highway "Down South" in the 1990s after I got divorced, and I've done it a few times since. It's a wonderful trip.
-Joe-