Buenos Aires and Rosario Railway
The Buenos Aires and Rosario Railway (BA&R) was a British-owned railway company that built and operated a 5 ft 6 in (1,676 mm) broad gauge railway network in Argentina, where it was known as the "Ferrocarril Buenos Aires y Rosario". Originally thought as a line from Buenos Aires to Campana, it then extended to the provinces of Santa Fe, Santiago del Estero, and Tucumán.
Source: Wikipedia — Buenos Aires and Rosario Railway (CC BY-SA 4.0)