Sierra Gorda is a Chilean commune in Antofagasta Province, Antofagasta Region. The total population was 1,516 as of the 2012 census. The t…Sierra Gorda is a Chilean commune in Antofagasta Province, Antofagasta Region. The total population was 1,516 as of the 2012 census. The two main settlements are the villages of Sierra Gorda and Baquedano.