AMTK
| Amtrak | 12 |
BDRV
| Belvidere & Delaware Railroad | 7 |
BNSF
| BNSF Railway | 1 |
CN
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 4 |
CR
| Conrail | 58 |
EL
| Erie Lackawanna | 6 |
GREX
| Georgetown Rail Equipment Company | 22 |
HKGX
| Haines & Kibblehouse Inc. | 4 |
HZGX
| Herzog Contracting Corporation | 49 |
NS
| Norfolk Southern | 46 |
NW
| Norfolk & Western | 6 |
RBMN
| Reading Blue Mountain & Northern | 1 |
SP
| Southern Pacific | 1 |
UP
| Union Pacific Railroad Company | 2 |