LIST OF ARGENTINE RAILWAY ENTERPRISES CARRIED IN SPREADSHEET ROWS:
| Formosa a Embarcación | FC de Formosa a Embarcación |
| CNA | FC Central Norte Argentino |
| S.Cristóbal a Tucumán | FC de San Cristóbal a Tucumán |
| Chumbicha a Catamarca | FC de Chumbicha a Catamarca |
| Deán Funes a Chilecito | FC de Deán Funes a Chilecito |
| AdN | FC Argentino del Norte |
| CNO | Cordoba and North-Western Ry. |
| CC (N) | Cordoba Central Ry. (Northen Section) |
| NOA | North-West Argentine Ry. |
| CC (E) | Cordoba Central Ry. (Original Line) |
| C y R | Cordoba and Rosario Railway |
| FCCC Extn. a Bs.As. | Cordoba Central Ry. (Bs.As.Extension) |
| TVR | Rafaela Steam Tramway |
| TA | Argentine Transandine Ry. |
| SF | Cie. des Chemins de Fer de la Province de Santa Fe |
| CGBA | Cie. Générale dans la Province de Buenos Aires |
| C. del Chubut | Central Ry. of Chubut |
| PBA | FC de la Provincia de Buenos Aires |
| BAM | Buenos Aires Midland Ry. |
| Córdoba a Malagueño | FC de Córdoba a Malagueño |
| Trocha 1.000 | Narrow gauge |
| E | FC del Este (del Estado) |
| EA | East Argentine Ry. |
| NEA | Argentine North-Eastern Ry. |
| Primer Entre-Riano | FC Primer Entrerriano |
| ER | Entre Rios Railways |
| CBA | FC Central de Buenos Aires |
| Trocha 1.435 | Standard gauge |
| SA al NH | FC de San Antonio al Nahuel Huapí |
| C.R. a Col. S. | FC de Comodoro Rivadavia a Colonia Sarmiento |
| Pto.D. a Col. L.H. | FC. de Puerto Deseado a Colonia Las Heras |
| BAE | Buenos Aires and Ensenada Ry. |
| S | Buenos Aires Great Southern Ry. |
| O | Buenos Aires Western Ry. |
| BBNO | Bahia Blanca North-Western Ry. |
| CA | Central Argentine Ry. |
| OSF | FC Oeste Santafecino |
| BAR | Buenos Aires and Rosario Ry. |
| GSSFyC | Santa Fe and Cordoba Great Southern Ry. |
| Rosario a Pto. Belgrano | Chemin de Fer de Rosario a Puerto Belgrano |
| NOA (La Rioja) | FC Noroeste Argentino (a La Rioja) |
| Andino | FC Andino |
| GOA | Argentine Great Western Railway |
| BAP | Buenos Aires and Pacific Ry. |
| VMR | Villa Maria and Rufino Ry. |
| Pedro Vargas a Malargüe | FC de Pedro Vargas a Malargüe |
| Trocha 1.676 | 5'6" gauge |
| Estado | State Railways |
| Particulares | Private railways |
| De concesión nacional | Railways with federal government concession |