ARTX
| Artrain | 1 |
BLE
| Bessemer & Lake Erie | 1 |
BN
| Burlington Northern | 9 |
CLC
| Columbia and Cowlitz Railway Company | 5 |
CSX
| CSX Railroad | 6 |
MNRR
| Modoc Northern Railroad Company | 3 |
MRL
| Montana Rail Link | 8 |
OHCR
| Ohio Central | 2 |
PLE
| Pittsburgh & Lake Erie | 1 |
PNWR
| Portland and Western Railroad Incorporat | 1 |
POTB
| Port of Tillamook Bay | 1 |
PWV
| Pittsburgh & West Virginia | 1 |
SBVR
| South Branch Valley Rail Road | 1 |
SP
| Southern Pacific | 2 |
STMA
| St. Maries River Railroad Company | 2 |
UP
| Union Pacific Railroad Company | 5 |
WE
| Wheeling & Lake Erie | 1 |
WLE
| WLE | 1 |
WPRR
| Willamette and Pacific | 5 |
WTCX
| Weyerhauser | 2 |