Cerro Toro is a Cretaceous landform of the Magallanes Foreland the Patagonian region of southeastern Chile. The Cerro Toro is an element of the southern Andes Mountain Range. The Andes fundamentally are the result of plate tectonics processes, caused by the subduction of the Nazca Plate beneath the South American plate. The formation of the Cerro Toro began in the Jurassic Period. The Cueva del Milodón Natural Monument is situated on the southern flank of Cerro Benitez associated with the Cerro Toro formation.