Today, I posted about US Highway 12, which is also now called the Iron Brigade Memorial Highway in Michigan, Indiana, Illinois and Wisconsin. This unit was one of the Union's best fighting organizations during the war; one that Confederates hated to face.
Three of the regiments were from Wisconsin and one each from Indiana and Michigan.
The Illinois signage is especially striking and we have an example near where I live in Spring Grove at US-12 and State Park Road.
You can view the entry at my Civil War blog, http://sawtheelephant.blogspot.com.
I Always Like it When a Road Goes Memorial. --RoadDog