BDRV
| Belvidere & Delaware Railroad | 1 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 16 |
DRGW
| Denver & Rio Grande Western | 1 |
HZGX
| Herzog Contracting Corporation | 17 |
RBMN
| Reading Blue Mountain & Northern | 1 |
SP
| Southern Pacific | 1 |
SPMW
| Southern Pacific Maintenance of Way | 1 |