AMTK
| Amtrak | 8 |
BB
| Buckingham Branch | 1 |
BLE
| Bessemer & Lake Erie | 2 |
BM
| Boston & Maine | 2 |
BN
| Burlington Northern | 4 |
CR
| Conrail | 5 |
CSX
| CSX Railroad | 3 |
DGRV
| DGRV | 1 |
DGVR
| DURBIN & GREENBRIER VALLEY RAILROAD INC | 3 |
DL
| Delaware-Lackawanna Railroad Company | 6 |
DRGW
| Denver & Rio Grande Western | 1 |
EL
| Erie Lackawanna | 5 |
HMIX
| Henkels and McCoy Inc | 1 |
HZGX
| Herzog Contracting Corporation | 1 |
LS
| Luzerne And Susquehanna | 2 |
NS
| Norfolk Southern | 8 |
NW
| Norfolk & Western | 5 |
PC
| Penn Central | 3 |
POHC
| Pittsburgh & Ohio Central | 1 |
RBMN
| Reading Blue Mountain & Northern | 10 |
RJCR
| RJ Corman | 2 |
RSR
| Rochester and Southern Railroad | 1 |
SB
| South Buffalo RR | 1 |
SOU
| Southern | 1 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 1 |
ST
| Springfield Terminal | 2 |
UP
| Union Pacific Railroad Company | 1 |
VSR
| Valley & Siletz RR | 6 |