AOK
| Arkansas-Oklahoma Railroad | 2 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 2 |
CHTT
| Chicago Heights Terminal Transfer | 3 |
CNW
| Chicago & Northwestern | 2 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 30 |
CSS
| Chicago South Shore And South Bend | 31 |
CSX
| CSX Railroad | 36 |
CTRN
| Union Pacific Railroad Company | 1 |
GRW
| Gary Railway | 12 |
HSM
| HSM | 14 |
IHB
| Indiana Harbor Belt | 1 |
INLX
| Incoal Company | 36 |
MKT
| Missouri-Kansas-Texas | 1 |
MP
| Missouri Pacific | 1 |
NS
| Norfolk Southern | 33 |
NYC
| New York Central | 5 |
SMW
| St Marys Railway West LLC | 1 |
SOU
| Southern | 1 |
SWM
| SWM | 1 |
TFM
| Kansas City Southern De Mexico | 1 |
TR
| Tomahawk Railway L.P. | 2 |
UP
| Union Pacific Railroad Company | 6 |