There are at least three bands called Atacama. 1) A chilean folk band based in Sweden called Atacama. They have released a self-titled album "Atacama" in 1970, and "Arriba quemando el sol" in 1971. Their albums are very difficult to find and information on the band itself is limited. 2) A grindcore duo based in Santa Clara, California. 3) A short lived post-hardcore band from Brusque, Brazil. Read more on Last.fm