La Pacana is a Miocene age caldera in northern Chile's Antofagasta Region. Part of the Central Volcanic Zone of the Andes, it is part of the Altiplano-Puna volcanic complex, a major caldera and silicic ignimbrite volcanic field. This volcanic field is located in remote regions at the Zapaleri tripoint between Chile, Bolivia and Argentina.

Cordón de Puntas Negras is a 500 km2 (193 sq mi) volcanic chain located east of the Salar de Atacama in Chile's Antofagasta Region.