Tierra Amarilla is a Chilean commune and city in Copiapó Province, Atacama Region. According to the 2012 census, the commune population was 12,898 and has an area of 11,191 km². ==Demographics== According to the 2002 census of the National Statistics Institute, Tierra Amarilla had 12,888 inhabitants (7,277 men and 5,611 women). Of these, 8,578 (...