High Quality Content by WIKIPEDIA articles! State Trunk Highway 131 (also called Highway 131, STH 131 or WIS 131) is a 78.9-mile (127.0 km) state highway in the U.S. state of Wisconsin. The highway is located in Wisconsin`s Driftless Area, and it passes through Crawford, Vernon, Richland, and Monroe counties. It runs from WIS 60 near Wauzeka north to US Highway 12 (US 12) and WIS 16 in Tomah. WIS 131 is maintained by the Wisconsin Department of Transportation (WisDOT).