ARA
| Arcade and Attica Railroad Corporation | 1 |
BML
| Belfast & Mooshead Lake | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 5 |
CS
| Colorado & Southern | 1 |
DL
| Delaware-Lackawanna Railroad Company | 1 |
DRGW
| Denver & Rio Grande Western | 2 |
ERR
| Edaville Railroad Corp | 1 |
SJL
| St Johnsbury & Lamoille County RR | 1 |
SP
| Southern Pacific | 1 |
UP
| Union Pacific Railroad Company | 1 |