Illinois State Route 78 runs north-south in Western Mason County. This follows the eastern banks of the Illinois River. IL St Rt 78 passes through the following towns in Mason County. Havana
NB IL St Rt 78 in Bath. NB IL St Rt 78 near Matanzas Beach. NB IL St Rt 78 south of Havana. A junction marker on WB U.S. Rt. 136/NB IL St Rt 97. WB U.S. Rt. 136; NB IL St Rt 78/97 near the Illinois River in Havana. WB U.S. Rt. 136; NB IL St Rt 78/97 crossing the Illinois River. Looking south at the Illinois River Bridge from the Havana shore on U.S. Rt. 136; IL St Rt 78/97.
