There's more than one, since the different counties can reuse codes. The one I k...

		bigstrat2003 6 months ago \| parent \| context \| favorite \| on: Why Wisconsin's county highways are lettered, not ... There's more than one, since the different counties can reuse codes. The one I know of goes from Brillion, WI out towards Chilton. I grew up in the area so I know that one quite well.