Pico Viejo is a volcano located on the island of Tenerife (Canary Islands, Spain). It is the second highest peak of Tenerife and the Canary Islands (after the Teide) with a height of 3,135 m above sea level.
The volcano is part of the Teide volcanic complex, which began forming about 200,000 years ago in the center of Tenerife. Its crater, about 800 meters in diameter, is one of the satellites craters around El Teide. It erupted in 1798 and was called Noses del Teide.