Lines are grouped into historic operating divisions. As passenger service declined during the 1950's, many divisions were consolidated.
Cleveland Short Line (Quaker-Rockport)
Alliance Branch (Phalanx-Dillonvale)
Main Line (Cleveland-Buffalo)
Main Line (Indianapolis-Terre Haute)
Main Line (Terre Haute-Alton/East St. Louis)
Cairo Branch (Danville-Paris-Cairo)
Terre Haute Division (Terre Haute-Evansville)
Main Line (Kankakee-Templeton)
Main Line (Lafayette-Indianapolis)
Main Line (Indianapolis-Indiana State Line)
Main Line (Ohio State Line-Cincinnati)
Springfield Branch (Springfield-Ohio State Line)
Springfield Branch (Indiana State Line-Indianapolis)
Michigan Branch (Goshen-Anderson-North Vernon)
Aurora Branch/Trafalgar Branch
Main Line (Berea-Bellefontaine)
Main Line (Bellefontaine-Ohio State Line)
Main Line (Indiana State Line-Indianapolis)
Columbus Line (Galion-Columbus)
Bellefontaine Branch (Sandusky-Bellefontaine-Springfield)
Cincinnati Northern Branch (Jackson MI-Carlisle OH)
Western Branch (Toledo-Columbus)
Eastern Branch (Toledo-Thurston)
Peoria & Eastern Line (Indianapolis-Danville)
Peoria & Eastern Line (Danville-Peoria)
Main Line (Youngstown-New Castle)