Caichinque is a Pleistocene-Holocene volcanic complex which is located in the high Andean plateau of the Antofagasta Region, in Chile, between Salar de Talar and Salar de Capur. It lies southwest of the Salar de Atacama, directly S of Cerro Miñiques and SE of Cordón Puntas Negras forming part of the main branch of the Andean volcanic chain in this area.
More than a half dozen vents produced andesitic-to-dacitic lava flows, with young flows descending to the NE and SE from the 4450m-high summit of Caichinque. One prominent flow traveled 6 km to the east, forming two lobes extending into the Salar Talar. Route CH-23 is an approach road to the volcano area.
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