Illinois State Route 105 is the main route through Central Piatt County. This route runs east-west through the west-center portion of the county, before running north-south at the center of county. IL St Rt 105 passes through the following towns in Piatt County. Cerro Gordo
A junction marker on NB IL St Rt 32. Looking west along IL St Rt 105 at IL St Rt 32. NB IL St Rt 32/EB IL St Rt 105 south of Cerro Gordo. NB IL Sr Rt 32/EB IL St Rt 105 in Cerro Gordo. WB IL St Rt 105 near Milmine. WB IL St Rt 105 south of Bement. WB IL St Rt 105 in Bement. EB IL St Rt 105 in Monticello. A guide marker on WB IL St Rt 105. WB IL St Rt 105 near Center in Monticello. WB IL St Rt 105 west of I-72. WB IL St Rt 105 at I-72. WB IL St Rt 105 at I-72. A BGS on EB I-72. A BGS on WB I-72. A BGS on WB I-72. The northern end. The northern end marker. The northern end of IL St Rt 105. (April, 2022) The northern end marker for IL St Rt 105. (April, 2022) A marker at the northern begin. The northern begin of IL St Rt 105. (April, 2022) The northern begin marker. (April, 2022)
