Illinois Route 91 is a jagged route that starts south of Kewanee, and heads east and south into Peoria. It goes east, then south, then east, then south, then east, then south! And then it jogs easterly again! It's instrumental in serving Stark County, passing through Toulon and Wyoming. In northern Peoria County, Illinois Route 91 connects to Princeville and acts as the main route through Dunlap. The southeastern end is where US Route 150 meets Illinois Route 6, alongside Peoria's Grand Prairie Mall.
Illinois 91 starts south of Kewanee, at the combination of US Route 34 and Illinois 78, and heads east:
Illinois 91 starts south of Kewanee, at the combination of US Route 34 and Illinois 78, and heads east:
At the next junction, continuing east lands you on the beginning of Illinois 93, but Illinois 91 turns to the south:
At Toulon, Illinois 91 joins Illinois 17 east to the next town:
The next town is Wyoming, where Illinois 91 deviates from Illinois 17 to head southerly again:
At Princeville, Illinois 91 joins Illinois 90 east:
After a four-mile concurrency, Illinois 91 splits from the easterly-oriented Illinois 90 to head south yet again:
After passing through Dunlap and completing another small easterly jog, Illinois 91 faces south at its southerly endpoint, at US Route 150 in a shopping district on the west side of Peoria. This is just west of US Route 150's interchange with Illinois 6, and the junction is very poorly signed, explaining the lack of photograph...
