ATSF
| Atchison Topeka & Santa Fe | 7 |
BN
| Burlington Northern | 129 |
BNSF
| BNSF Railway | 41 |
CBQ
| Chicago Burlington & Quincy | 2 |
CN
| Canadian National Railways | 3 |
CNW
| Chicago & Northwestern | 27 |
CP
| Canadian Pacific Railway | 22 |
DMIR
| Duluth Missabe & Iron Range | 13 |
DWP
| Duluth Winnipeg & Pacific | 1 |
FRA
| Federal Railroad Administration | 5 |
GN
| Great Northern | 37 |
GREX
| Georgetown Rail Equipment Company | 40 |
HZGX
| Herzog Contracting Corporation | 7 |
KMUX
| Kershaw Manufacturing Company | 3 |
LMIX
| Loram Maintenance of Way Inc. | 23 |
MILW
| Milwaukee Road | 31 |
MNNR
| Minnesota Commercial | 1 |
MNS
| Minneapolis Northfield & Southern | 2 |
MNZX
| MNZX | 3 |
SOO
| Soo Line | 19 |
SP
| Southern Pacific | 1 |
SPMW
| Southern Pacific Maintenance of Way | 2 |
SPS
| Spokane Portland & Seattle | 12 |
SRBX
| SRBX | 3 |
UP
| Union Pacific Railroad Company | 6 |
WP
| Western Pacific | 1 |