Indiana State Route 13 is one of the three north-south highways in Elkhart County. This is the eastern most north-south highway of the county. IN St Rt 13 passes through the following towns in Elkhart County. Middlebury Millersburg IN St Rt 13 is multi-plexed in Elkhart County. U.S. Rt. 33, near Wawasee. U.S. Rt. 6, near Wawasee. IN St Rt 13 intersects the following highways in Elkhart County. Interstate 80, near Vistula. Interstate 90, near Vistula. U.S. Rt. 131, near Vistula. Indiana East-West Toll Road, near Vistula. Indiana State Route 120, near Vistula.