commercial passenger airline service on three of Chile's major airlines. As mentioned above, there is also an important railway in the city. Sister cities Catamarca, Argentina Córdoba, Argentina Felipe Varela, Argentina La Rioja, Argentina Santiago del Estero, Argentina Jiujiang, China Nanchang, China Panyu, China Pingxiang, China Ruichang, China Castellón de la Plana, Spain References External links Municipality of Copiapó Communes of Chile Atacama Desert Capitals of Chilean regions Capitals of Chilean provinces Populated places in Copiapó Province Populated places in Atacama Region Populated places established in 1744 1744 establishments in the Spanish Empire