El Salvador is a mining town in the commune of Diego de Almagro, Chañaral Province, Atacama Region, Chile. Located at an elevation of more than 2,400 meters in the foothills of the Andes and in the middle of the Atacama Desert, it has a population of approximately 7,000 inhabitants. At its peak, El Salvador once had a population of 34,000 inhabitants. Development and economy El Salvador's economy is entirely based on copper mining. The Atacameños extracted copper from this area for more than a thousand years. Nevertheless, it was American explorations in the 1950s that revealed the presence of ore that could be exploited in an industrial scale. Anaconda Copper Mining Company was concerned about declining reserves in its Potrerillos mine and it sent prospectors in search of a new Chilean ore body in 1951. Working under the auspices Anaconda's Andes Mining subsidiary, the mineralization was discovered in 1954 and mapped in 1955. As a remote discovery, Anaconda had to build El Salvador as a self-contained and self-sustaining town. It was complete with housing, schools, stores, water and electrical plants and a railway. The mine opened in 1959. The architect in charge of designing the city was Raymond Olson, who worked at the Anaconda headquarters in New York City. The town was designed in the shape of a Roman helmet. Legend has it that an executive of Anaconda Mining Company travelled to the proposed town site with his son. The boy had with him his beloved toy; a Roman helmet, which he lost in the desert. Years later once the city was built he was flown over the town and his father said “Remember the toy helmet you lost as a young boy? Look down son, there it is! Key dates for the foundation of El Salvador include: 23 April 1959 - on this date, the first load of ore was crushed. 2 July 1959 - the first bar of copper arrived in New York. 28 November 1959 - El Salvador was officially inaugurated. In 1971, after nationalization of copper under the government of Salvador Allende, Codelco Chile took over operation of the El Salvador mine. In 2004, according to official numbers, a total of 74,874 tons metric of fine copper were produced, employing 1,727 people. Nevertheless, since 2001, and in spite of sustained increases in the international price of copper, the mine has experienced losses of more than 3.4