Planchón-Peteroa
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| Planchón-Peteroa | |
|---|---|
 Peteroa as seen from the summit of Planchón. |
|
| Elevation | 4,107 metres (13,474 ft) |
| Location | Argentina-Chile |
| Range | Andes |
| Coordinates | Coordinates: |
| Type | Complex volcano |
| Last eruption | 1998 |
Planchón-Peteroa is a complex volcano extending in a north-south direction along the border between Argentina and Chile. It consists of volcanoes of various ages with several overlapping calderas. Those include Volcán Planchón, Volcán Peteroa and Volcán Azufre.
A partial collapse of the complex about 11,500 years ago produced a major debris avalanche, which followed the course of the Teno River until reached the Chile Central Valley.
Peteroa has a crater lake. Lagunas de Teno lie at the foot of Planchón volcano. In this area also is the Vergara International Pass.
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