Belgrano Cargas company also took over some services from Urquiza, San Martín and Sarmiento railways. Belgrano Cargas Belgrano Cargas S.A. was an Argentine State-owned company which operated the gauge freight rail network built by Central Northern and Province of Santa Fe Railways, which became part of Belgrano Railway network after railway nationalization of 1948. The network operated by Belgrano Cargas extended through the provinces of Buenos Aires, Santa Fe, Córdoba, Mendoza, Santiago del Estero, San Juan, La Rioja, Catamarca, Tucumán, Chaco, Formosa, Salta and Jujuy. The line also reached all the Argentina's neighbouring countries, such as Bolivia, Uruguay, Brazil, Chile and Paraguay.
Catamarca Province low humidity and high solar radiation. Before the arrival of the Spanish conquest, most of today's Catamarca was inhabited by the Diaguitas indigenous people, including the fierce Calchaquí tribe. In 1558 Juan Pérez de Zurita founded "San Juan de la Ribera de Londres", but since it was constantly under attack by indigenous people its population remained small; it was re-founded several times at new sites with new names. The sixth foundation was by Fernando de Mendoza Mate de Luna on July 5, 1683, with the name "San Fernando del Valle de Catamarca". When the Viceroyalty of the Río de la