The Popocatépetl Volcano: Entrance To Alien Underground Bases The Popocatépetl volcano is about 730,000 years old. The elevation at the peak is 5,450 m (17,880 ft). The volcano is cone shaped with a diameter of 25 km (16 mi) at its base. The crater … Continue reading The Popocatépetl Volcano: Entrance To Alien Underground Bases