BCOL
| Canadian National Railways | 1 |
BN
| Burlington Northern | 1 |
CN
| Canadian National Railways | 2 |
CP
| Canadian Pacific Railway | 5 |
CS
| Colorado & Southern | 2 |
EIRR
| Eastern Idaho Railroad Incorporated | 1 |
KCCX
| Kennecott Utah Copper Corporation | 2 |
NN
| Northern Nevada Railroad Corporation | 9 |
PSAP
| Puget Sound and Pacific Railroad Company | 1 |
SP
| Southern Pacific | 1 |
STMA
| St. Maries River Railroad Company | 4 |