Salado River (Argentina) under the name of Juramento River at the Andes range, from thaw and captured precipitations of the high Acay and Cachi mountains in the Salta Province, near Catamarca Province. The Cabra Corral Dam regulates its flow, and deviates some of it for irrigation. When the river enters the Gran Chaco plains it forms several arms in a broad riverbed only partially occupied. The river then enters the Santiago del Estero Province from the north, near the border with the Tucumán Province, receiving the name of "Salado". The Salado and the Dulce River ("Sweet River") south to it, run diagonally in
Llullaillaco Llullaillaco Llullaillaco () is a dormant stratovolcano at the border of Argentina (Salta Province) and Chile (Antofagasta Region). It lies in the Puna de Atacama, a region of tall volcanic peaks on a high plateau close to the Atacama Desert, one of the driest places in the world. It is the second highest active volcano in the world after Ojos del Salado. Llullaillaco formed during two different phases in the Pleistocene-Holocene out of dacitic lava flows. The oldest rocks are about 1.5 million years old. About 150,000 years ago, the volcano's southeastern flank collapse, generating a debris avalanche that reached