Directory of Class III and regional railroads in the United States
670
Total Railroads
657
Short Lines
45
States
6
Class I
7
Class II
657
Short Line
670 railroads
| Mark | Railroad Name | Class | State(s) |
|---|---|---|---|
| PR | Palmetto Railways | Short Line | |
| PCC | Palouse River and Coulee City Railroad | Short Line | |
| PNR | Panhandle Northern Railroad | Short Line | |
| PVS | Pecos Valley Southern Railway | Short Line | |
| PDRR | Pee Dee River Railway | Short Line | |
| POVA | Pend Oreille Valley Railroad | Short Line | |
| PT | Peninsula Terminal Company | Short Line | |
| PSCC | Pennsylvania and Southern Railway | Short Line | |
| PSWR | Pennsylvania Southwestern Railroad | Short Line | |
| PCYR | Perry County Railroad | Short Line | |
| PIRR | Peru Industrial Railroad | Short Line | |
| PICK | Pickens Railway | Short Line | |
| PRY | Pioneer Industrial Railroad | Short Line | |
| PVRR | Pioneer Valley Railroad | Short Line | |
| POHC | Pittsburgh and Ohio Central Railroad | Short Line | |
| PSC | Plainsman Switching Company | Short Line | |
| PTM | Plainview Terminal Company | Short Line | |
| PCN | Point Comfort and Northern Railway | Short Line | |
| PBVR | Port Bienville Railroad | Short Line | |
| PHRR | Port Harbor Railroad | Short Line | |
| PJR | Port Jersey Railroad | Short Line | |
| PLCT | Port Liberty Container Terminal ExpressRail | Short Line | |
| PMR | Port Manatee Railroad | Short Line | |
| PCIR | Port of Catoosa Industrial Railroad | Short Line | |
| PRI | Port Rail, Inc | Short Line | |
| PTRA | Port Terminal Railroad Association | Short Line | |
| PTR | Port Terminal Railroad of South Carolina | Short Line | |
| PNWR | Portland and Western Railroad | Class II | |
| PTRC | Portland Terminal Railroad | Short Line | |
| PVJR | Portland Vancouver Junction Railroad | Short Line | |
| PNW | Prescott and Northwestern Railroad | Short Line | |
| PGR | Progressive Rail, Inc. | Short Line | |
| PW | Providence and Worcester Railroad | Short Line | |
| PSAP | Puget Sound and Pacific Railroad | Short Line | |
| QRR | Quincy Railroad | Short Line | |
| RJCN | R.J. Corman Railroad/Allentown Lines | Short Line | |
| RJCR | R.J. Corman Railroad/Bardstown Line | Short Line | |
| RJCA | R.J. Corman Railroad/Carolina Line | Short Line | |
| RJCC | R.J. Corman Railroad/Central Kentucky Lines | Short Line | |
| RJCL | R.J. Corman Railroad/Cleveland Line | Short Line | |
| LRWY | R.J. Corman Railroad/Lehigh Line | Short Line | |
| LS | R.J. Corman Railroad/Luzerne & Susquehanna Line | Short Line | |
| RJCM | R.J. Corman Railroad/Memphis Line | Short Line | |
| NERR | R.J. Corman Railroad/Nashville & Eastern Line | Short Line | |
| NWR | R.J. Corman Railroad/Nashville & Western Line | Short Line | |
| OHRY | R.J. Corman Railroad/Owego & Harford Line | Short Line | |
| RJCP | R.J. Corman Railroad/Pennsylvania Lines | Short Line | |
| RJCK | R.J. Corman Railroad/Tennessee Terminal | Short Line | |
| RJCD | R.J. Corman Railroad/Texas Lines | Short Line | |
| RJCV | R.J. Corman Railroad/West Virginia Line | Short Line |
Source: Wikipedia "List of United States railroads". 670 railroads indexed.