Rock Mill’s Historical Marker (377) is a little hard to find as it’s not on a main (or even county) road. Just off CR-R in Manitowoc County, you have to go into the Devils River Campers Park to find it.
Since it was raining very, very lightly the day we visited the marker, we didn’t stay long, and I only took this one picture of the marker and the mill in the distance.
Afterwards we went to Cherney Maribel Caves Park to see what the caves looked like there.