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
657 railroads (filtered)
| Mark | Railroad Name | Class | State(s) |
|---|---|---|---|
| RPRC | Richmond Pacific Railroad | Short Line | |
| RWRR | Ringneck and Western Railroad | Short Line | |
| RVSC | Rio Valley Switching Company | Short Line | |
| RNAB | Ripley & New Albany Railroad | Short Line | |
| RRR | River Ridge Railroad | Short Line | |
| RVPR | Riverport Railroad | Short Line | |
| RER | Rochester and Erie Railroad | Short Line | |
| RSR | Rochester and Southern Railroad | Short Line | |
| RSS | Rochester Switching Services | Short Line | |
| RRRR | Rock & Rail LLC | Short Line | |
| RVT | Rogue Valley Terminal Railroad Corporation | Short Line | |
| SLGG | S&L Railroad | Short Line | |
| SRN | Sabine River and Northern Railroad | Short Line | |
| SSRR | Sacramento Southern Railroad | Short Line | |
| SAV | Sacramento Valley Railroad | Short Line | |
| SLGW | Salt Lake, Garfield and Western Railway | Short Line | |
| SAC | San Antonio Central Railroad | Short Line | |
| SDIY | San Diego and Imperial Valley Railroad | Short Line | |
| SFBR | San Francisco Bay Railway | Short Line | |
| SJVR | San Joaquin Valley Railroad | Short Line | |
| SLC | San Luis Central Railroad | Short Line | |
| SMA | San Manuel Arizona Railroad | Short Line | |
| SPVR | San Pedro Valley Railroad | Short Line | |
| SS | Sand Springs Railway | Short Line | |
| SAN | Sandersville Railroad | Short Line | |
| SCBG | Santa Cruz, Big Trees and Pacific Railway | Short Line | |
| SMV | Santa Maria Valley Railroad | Short Line | |
| STSR | Santa Teresa Southern Railroad | Short Line | |
| SBG | Savage Bingham and Garfield Railroad | Short Line | |
| SVGX | Savage Tooele Railroad | Short Line | |
| SVHO | Savannah and Old Fort Railroad | Short Line | |
| SIT | Savannah Industrial Transportation | Short Line | |
| SAPT | Savannah Port Terminal Railroad | Short Line | |
| SVTX | Seaview Railroad | Short Line | |
| SGLR | Seminole Gulf Railway | Short Line | |
| SE | SEMO Port Railroad | Short Line | |
| SQSC | Sequatchie Valley Switching Company | Short Line | |
| SVRR | Shamokin Valley Railroad | Short Line | |
| SV | Shenandoah Valley Railroad | Short Line | |
| SERA | Sierra Northern Railway | Short Line | |
| SMRR | Sisseton Milbank Railroad | Short Line | |
| SJRE | SJRE Railroad | Short Line | |
| SLRS | SMS Rail Service, Inc. | Short Line | |
| SBVR | South Branch Valley Railroad | Short Line | |
| SB | South Buffalo Railway | Short Line | |
| SCRF | South Carolina Central Railroad | Short Line | |
| SCXF | South Central Florida Express, Inc. | Short Line | |
| SCTR | South Central Tennessee Railroad | Short Line | |
| SCIH | South Chicago and Indiana Harbor Railway | Short Line | |
| SKOL | South Kansas and Oklahoma Railroad | Short Line |
Source: Wikipedia "List of United States railroads". 670 railroads indexed.