Laguna del Maule (volcano) about fourteen shield volcanoes and stratovolcanoes that have been degraded by glaciation. The Laguna del Maule volcanic field covers a surface area of and contains cones, lava domes, lava flows, and shield volcanoes. There are 130 volcanic vents at Laguna del Maule. The lake is surrounded by 36 silicic coulees and lava domes. Over of the field is covered by these rocks, and volcanic ash and pumice produced by the eruptions has been found in Argentina. Presently some summits around Laguna del Maule reach altitudes of . The volcanic field lies at an average height of . Among the various
Laguna del Negro Francisco divert waters of the Astaburuaga River for irrigation purposes; later devised projects envisaged capturing the discharge into the lake in a canal and transfer the water through a tunnel into the Figueroa River, one of the headwaters of the Copiapó River;) or to divert the Astaburuaga River into the Salar de Maricunga and from there into the Copiapó River catchment. In 2009, a mining company held rights to divert about from the Astaburuaga River. The lakes of the water itself are not suited for either drinking or irrigation purposes. Laguna del Negro Francisco Laguna del Negro Francisco is a lake