Cerro Volcánico (also known as Fonck) is a cinder cone in Argentina, located southeast of the massive stratovolcano of Tronador. The cone produced a single andesite lava flow, which has been bracketed in age between 70,000 and 14,000 years ago. Sources See also List of volcanoes in Argentina El Bolsón, Río Negro El Bolsón Airport Cinder cones Volcanoes of Río Negro Province Subduction volcanoes Mountains of Argentina