Volcán Espíritu Santo is an pleistocene stratovolcano at the center of the San José volcanic group, located at 90km from Santiago de Chile at the end of the Cajón del Maipo on the Chile-Argentina border. The 1000m-wide summit crater of Espíritu Santo volcano overlaps the southern slope of the Marmolejo volcano and partially overlies La Engorda. The San José complex includes - a part of Espíritu Santo, La Engorda and San José - the Plantat and Marmolejo volcanoes, the latter of which is the highest (6108m) and located on the North-end of the group.