Belgrano Cargas 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. In more recent years, the name "Belgrano Cargas" is often erroneously used by
Catamarca Province San Francisco pass and mules were bred for the Bolivian market in the 1910s. Mining was important in the past. After becoming less active in the early 1990s, grew to now account for over 20% of the economy. Catamarca is home to one of the largest copper gold mines in the world, Bajo de la Alumbrera, which produces approximately 600,000 ounces of gold and 190,000 tonnes of copper annually. The mine employs over 1,000 people and contributes hundreds of millions of dollars in taxes and royalties to the federal and provincial governments. The agriculture of Catamarca focuses on wood (walnut),