Chemical rocks, geysers El Tatio, Chile, Andean Altiplano (high plateau), the Andes Cordillera

Chemical rocks, geysers El Tatio, Chile, Andean Altiplano (high plateau), the Andes Cordillera

The Atacama Salar (salt flat), in the Atacama Desert, Chile

The Salt Cordillera, in the Atacama Desert, Chile

Detail of rocks in the Salt Cordillera, in the Atacama Desert, Chile

Rock formation in the Moon Valley, in the Atacama Desert, Chile

The Laguna Verde, Licancabur volcano, Bolivia, Andean Altiplano (high plateau), the Andes Cordillera

Rocks, Argentina, on the Andean Altiplano (high plateau), the Andes Cordillera

Lava with columnar jointing, Jujuy, Argentina, on the Andean Altiplano (high plateau), the Andes Cordillera

The Andes: the Licancabur volcano, the Laguna Verde, Bolivia

The Licancabur volcano, Bolivia, on the Andean Altiplano (high plateau), the Andes Cordillera

Mountains near Purmamarca, Jujuy, Argentina, the Andes Cordillera

The Andes: eroded lava rock formation on the Altiplano, Chile

Clay, on the Andean Altiplano (high plateau), Argentina, the Andes Cordillera

Pumice, on the side of a volcano, affected by the wind, Argentina, on the Andean Altiplano (high plateau), the Andes Cordillera

Rock formation, Argentina, on the Andean Altiplano (Puna, high plateau), the Andes Cordillera