Pico Viejo is a volcano located on the island of Tenerife. 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, a huge crater approximately of 720 metres in diameter. The volcano is part of the Teide volcanic complex, which began forming about 200,000 years ago in the centre of Tenerife. Its crater is one of the satellite craters around El Teide.