Typically NYC lines in southern Illinois and Indiana, generally between Indianapolis and St. Louis, and various lines in Ohio.
NYC divisions typically had a main line and some branch lines. Many branch lines did not have real names until after the 1968 Penn Central merger. As divisions were consolidated resulting in multiple main lines, different naming systems were adopted.
Many segments have been abandoned, or sold to short line operators.
Erie West Subdivision (Cleveland-Buffalo)
Cleveland Short Line Subdivision (Quaker-Berea)
Line Sold to Ohi-Rail
Alliance Branch (Phalanx-Minerva-North Apex)
Line Sold to Columbus & Ohio River Rail Road
Alliance Branch (North Apex-Carmen-Dillonvale)
Abandoned Lines
Lake Erie & Pittsburg Branch (Marcy-Brady)
Greenwich Subdivision (Berea-Greenwich)
Mt. Victory Subdivision (Greenwich-Bellefontaine)
Indianapolis Line Subdivision (Bellefontaine-Indianapolis)
Columbus Line Subdivision (Galion-Columbus)
Lines Sold to Indiana & Ohio Railway
Bellefontaine Branch (Sandusky-Bellefontaine-Springfield)
Mechanicsburg Branch (Delaware-Mechanicsburg-Springfield)
Abandoned Lines
Northern Branch (Jackson MI-Carlisle OH)
St. Marys Branch/Vanlue Branch
Toledo Branch Subdivision (Toledo-Ridgeway)
Scottslawn Secondary Subdivision (Ridgeway-Columbus)
Abandoned Lines
Eastern Branch (Toledo-Thurston)
Line evolved as follows:
Indianapolis-Terre Haute (CSX St. Louis Line Subdivision)
Terre Haute-Paris (Sold to Decatur & Eastern Illinois Railroad)
Paris-Pana (abandoned)
Pana-Lenox (Sold to Union Pacific)
Line Sold to Decatur & Eastern Illinois Railroad
Cairo Branch (Danville-Vermillion Grove-Paris)
Line Sold to Indiana Southern Railroad
Terre Haute Division (Terre Haute-Elnora-Evansville)
Abandoned Lines
Cairo Branch (Paris-Cairo)
Vincennes Branch/Evansville Branch
Old Line (Hillsboro-Alton)
Line evolved as follows:
Kankakee-Templeton (Sold to Kankakee Beaverville & Southern Railroad)
Templeton-Lafayette (via former NKP)
Lafayette-Indianapolis (abandoned)
Indianapolis-Shelbyville (CSX Shelbyville Secondary Subdivision)
Shelbyville-Cincinnati (Sold to Central Railroad Of Indiana)
Line Sold to Indiana & Ohio Railway
Whitewater Branch (Valley Jct.-Brookville)
Line Sold to Whitewater Valley Railroad
Whitewater Branch (Brookville-Metamora-Connersville-Hagerstown)
Abandoned Lines
Springfield Branch (Cold Springs-Indianapolis)
Michigan Branch (Anderson-North Vernon)
Trafalgar Branch/Columbus Branch/Aurora Branch
Kankakee & Seneca Branch (Kankakee-Seneca)
Line evolved as follows:
Indianapolis-Crawfordsville (CSX Crawfordsville Branch Subdivision)
Crawfordsville-Olin (abandoned)
Olin-Danville (Sold to Vermilion Valley Railroad)
Danville-Peoria (abandoned)
Abandoned Lines
Porter Subdivision (Hammond-Porter)
Abandoned Lines
Joliet Branch (East Gary-Joliet)
Line Sold to Mahoning Valley Railway
Main Line (Youngstown-Struthers-New Castle)