- VolcanoCerro Pantoja is an eroded dominantly basaltic volcano along the Chile-Argentina border. The only known activity within the past 10,000 years is a cinder cone on the Argentinian side. Cerro Pantoja lies SSW of Lake Constancia located immediately west of the Argentinian border. The volcano has a dramatic steep-sided summit pinnacle.
Volcano type stratovolcano normal or dormant Location Chile Summit elevation 2024 m / 6,640 ft Cerro Pantoja volcano eruptions within the past 10,000 years Typical eruption style explosive