Illinois State Route 178 lives entirely in La Salle County. This route is pretty much a "tourist" route. This is said because all it does is connect 2 major state parks to Interstate 80. IL St Rt 178 passes through the following towns. Utica (North Utica)
IL St Rt 178 is not multi-plexed in La Salle County. IL St Rt 178 passes the following state parks. Starved Rock State Park, near Utica. Matthiessen State Park, south of Utica.