Descabezado Grande

Descabezado Grande is a stratovolcano located in the Maule Region of central Chile. It is capped by a 1.4-kilometre-wide ice-filled caldera and named for its flat-topped form, as descabezado means "headless" in Spanish. A smaller crater about 500 metres wide is found in the northeast part of the caldera, and it has active fumaroles.

The volcano is composed of andesite and rhyodacite lava flows along with pyroclastic flow deposits. It has a basal diameter of about 10 by 12 kilometres and a total volume of about 30 cubic kilometres. Along with Cerro Azul, 7 kilometres to the south, it lies at the center of a 20-by-30-kilometre volcanic field.