Topic summaryIllinois Service Expand Summary HomewoodNapervilleKankakeePlanoGilmanMendotaRantoulPrincetonChampaign–UrbanaMattoonGeneseoEffinghamCentraliaDu QuoinKewaneeGalesburgMacombSummitJolietDwightPontiacNormalLincolnSpringfieldCarlinvilleAltonMississippi RiverShow route diagram map Wikipedia source