ASV
| Abilene & Smokey Valley | 1 |
ATSF
| Atchison Topeka & Santa Fe | 10 |
BN
| Burlington Northern | 38 |
BNSF
| BNSF Railway | 7 |
BO
| Baltimore & Ohio | 1 |
CBQ
| Chicago Burlington & Quincy | 3 |
CIM
| Chicago And Illinois Midland | 1 |
CLC
| Columbia and Cowlitz Railway Company | 1 |
CMNW
| Chicago Missouri & Western | 1 |
CRIP
| Chicago Rock Island & Pacific | 3 |
CS
| Colorado & Southern | 1 |
CSP
| Camas Prairie RailNet Incorporated | 14 |
DRGW
| Denver & Rio Grande Western | 1 |
EIRR
| Eastern Idaho Railroad Incorporated | 1 |
GMO
| Gulf Mobile & Ohio | 1 |
GN
| Great Northern | 6 |
GWWR
| Gateway Western | 2 |
ICG
| Illinois Central Gulf | 2 |
ITC
| Illinois Terminal Railroad | 1 |
MILW
| Milwaukee Road | 4 |
MKT
| Missouri-Kansas-Texas | 2 |
MP
| Missouri Pacific | 10 |
MPEX
| Motive Power Industries | 1 |
NP
| Northern Pacific | 3 |
NW
| Norfolk & Western | 3 |
OCSR
| OCSR | 1 |
SI
| Union Pacific Railroad Company (Spokane International) | 1 |
SOO
| Soo Line | 2 |
SOU
| Southern | 1 |
SPS
| Spokane Portland & Seattle | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
STMA
| St. Maries River Railroad Company | 6 |
SVRY
| SVRY | 3 |
UP
| Union Pacific Railroad Company | 23 |
WAB
| Wabash | 1 |
WP
| Western Pacific | 1 |
WPRR
| Willamette and Pacific | 1 |
WTCX
| Weyerhauser | 1 |