Illinois 90 is a fairly short east-west road running from IL40 just north of the Peoria are to IL78. It never exits the northern part of Peoria County.
Intersections from west to east:
IL90 begins in the west at IL78
IL91 comes from the north at Princeville
IL91 breaks off and goes south toward Dunlap
IL90 ends in the east at IL40 near Edelstein.
It passes through Princeville and no other towns.
If you are going east and you accidentally pass IL40 and you panic because your map only shows numbered state, federal (US) and Interstate highways, keep your cool. The road will lead you straight to IL29 in Chillicothe. In fact, why don't they extend IL90 to go to IL29 there?
Northbound IL40 at IL90.
