Ferrocarril Domingo Faustino Sarmiento

The Ferrocarril Domingo Faustino Sarmiento (FCDFS), named after the former Argentine president, statesman, educator, and author Domingo Faustino Sarmiento, was one of the six state-owned Argentine railway companies formed after President Juan Perón's nationalisation of the Argentine railway network in 1948. The six companies were managed by Ferrocarriles Argentinos which was later broken up during the process of railway privatisation beginning in 1991 during Carlos Menem's presidency. The FCDFS took over the broad gauge lines on the British-owned company Buenos Aires Western Railway.

The principal lines departed from Estación Once in Buenos Aires to the west through the provinces of Buenos Aires, La Pampa, Córdoba , San Luis and Mendoza.

Suburban branch

In the metropolitan sector of the City of Buenos Aires there is a commuter rail service that operates from the city-centre to several locations in the western suburbs of Buenos Aires.