Main Line Flint Subdivision - GTW - Port Huron to Battle Creek
|
Main Line South Bend Sub - GTW - Battle Creek to Chicago
|
Cass City Sub - GTW - Pontiac Yard to Caseville
|
Grand Haven Sub - GTW - Durand to Grand Haven
|
Holly Sub - GTW - Detroit to Durand
|
Jackson Branch - GTW - MAL Junction to Jackson
|
Kalamazoo Sub - GTW - Pavilion to Kalamazoo
|
Mount Clemens Sub - GTW - West Detroit to Tappen (Port Huron)
|
Muskegon Sub - GTW - Ashley to Muskegon
|
Pontiac Belt Line - GTW - Around Pontiac
|
Romeo Sub - GTW - Richmond to Pontiac
|
Saginaw Sub - GTW - Durand to Bay City
|