Illinois State Route 903 is a old section of U.S. Federal Route 66 in Macoupin County. This is the alignment that was at one time four-lanes and by-passes Mt. Olive to the north and west.
The first mile marker just south of the Montgomery/Macoupin County Line.
Looking south from M.P. 6.
M.P. # 5 on IL St Rt 903.
Looking north from M.P. 5.
M.P. # 3 on IL st Rt 903.
Looking north from M.P. 3.