Calama, Chile Calama, Chile Calama is a city and commune in the Atacama Desert in northern Chile. It is the capital of El Loa Province, part of the Antofagasta Region. Calama is one of the driest cities in the world with average annual precipitation of just . The River Loa, Chile's longest, flows through the city. Calama has a population of 147,886 (2012 census). The commune also encompasses the Quechuas communities of Estación San Pedro, Toconce and Cupo; and the Lickan-antay communities of Taira, Conchi Viejo, Lasana, San Francisco de Chiu Chiu, Aiquina-Turi, and Caspana. In 2003 the nearby town of Chuquicamata,
War of the Pacific in the Andes. For the first five months the war played out in a naval campaign, as Chile struggled to establish a sea-based resupply corridor for its forces in the world’s driest desert. In February 1878, Bolivia imposed a new tax on a Chilean mining company (“Compañía de Salitres y Ferrocarril de Antofagasta”, CSFA) despite Bolivian express warranty in the 1874 Boundary Treaty that it would not increase taxes on Chilean persons or industries for 25 years. Chile protested and solicited to submit it to mediation, but Bolivia refused and considered it a subject of Bolivia’s courts. Chile insisted and