Andacollo is a copper and gold mining city located in the mountains of the Small North (El Norte Chico) in Chile. It was founded in 1891.
Several legends are told about the name of the city. Some say that it comes from the QuechuaAnta-Goya which means cobre-reina (copper queen). Others say that the name means "Hurry up, Collo" (Anda, Collo). According to these legends, La Virgen del Rosario, also known as la Virgen Morena, or Black Madonna, appeared to an indigenous miner called "Collo" in the form of a small wooden statuette hidden in rocks. The statue told the newly converted Collo to build up a church at the place where Andacollo is located today. As many miracles are attributed to the Dark Lady (like stopping the smallpox epidemic of 1871) the city celebrates the Virgin every year on December 24 to 26.