Wisconsin Highway 81

State Trunk Highway 81 (often called Highway 81, STH 81 or WIS 81) is a state highway in the U.S. state of Wisconsin. It runs east–west in southwest and south central Wisconsin from Beloit to Cassville. Between Brodhead and Monroe it shares it route with WIS 11 for 13 miles (21 km).

Map of WI-81, Wisconsin, USA