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Earth's highest volcano is a stratovolcano; Nevado Ojos del Salado in
Chile is 6,887 m above sea level. The highest volcano with historic
eruptions is Llullaillaco, Chile, at 6,739 m. Both volcanoes are located
in the northern Chilean Andes.
- Mount St. Helens is the youngest
stratovolcano in the Cascades and the most active. Geologists have
identified at least 35 layers of tephra erupted by the volcano in the
past 3,500 years.
- Mount Shasta is the largest stratovolcano in the Cascades.
Credit: USGS
