Rail transport in Argentina served by train, departing from Constitucion, Once and Retiro terminus located in the centre of Buenos Aires. Some cities currently are: Mar del Plata, Rosario (both stations, Norte and Sur, Córdoba, General Pico, Santa Rosa, Rufino and San Miguel de Tucumán. Other regional services are operated by their respectives Provinces, such as Tren a las Nubes (operated by the Government of Salta) and Servicios Ferroviarios Patagónico (also known as "Tren Patagónico") by the Río Negro Province. Buenos Aires Córdoba Entre Ríos Misiones Patagonia Rosario Salta Tierra del Fuego There are several private freight operators in Argentina, along with the state-owned
Corrientes Juan Díaz de Solís commanded the first expedition to reach the area populated mainly by Guaraní aboriginals, but his expedition was attacked and Solís perished in the adventure. Sebastian Cabot established in 1527 the "Sancti Spiritu" fort upstream of the Paraná River, and in 1536 Pedro de Mendoza reached further north into the basin of the river, searching for the "Sierras of Silver". Juan Torres de Vera y Aragón founded on April 3, 1588 "San Juan de Vera de las Siete Corrientes" ("Saint John of Vera of the Seven Currents"), which was later shortened to "Corrientes". The "seven currents" refer