^Looking north from the junction with Wisconsin Highway 111, August 2020.
Wisconsin Highway 15 is a short east-west connection between Appleton and New London, in east-central Wisconsin. The highway passes through Greenville on its 15-mile journey. The western end of Wisconsin Highway 15 is at US Route 45 on the south side New London. From there, Wisconsin 15 heads easterly with somewhat of a southeastern tilt. Wisconsin 15 crosses Wisconsin 76 in the heart of Greenville, and shortly after that, Wisconsin 15 reaches Interstate 41. This is the conclusion of Wisconsin Highway 15, and it occurs on the northwest side of Appleton.
My photo of a route marker for Wisconsin Highway 15 is a northbound junction marker on US Route 45 in New London. This sign assembly warns northbound travelers that the junction with the western end of Wisconsin Highway 15 is coming up shortly. This photo was taken in February 2022, during a drive around eastern and central Wisconsin.