Sabalan ridge of Sabalan. Sabalan Sabalan (Persian: سبلان ), or Savalan (Azerbaijani: Savalan, ساوالان ) is an inactive stratovolcano in the Alborz mountain range and Ardabil Province of northwestern Iran. At in elevation, it is the third highest mountain in Iran. It has a permanent crater lake formed at its summit. On one of its slopes around in elevation there are large rock formations of eroded volcanic outcrops which resemble animals, birds, and insects. Located in the extreme northwest of Iran, Sabalan is the country's third highest peak after Damavand and Alam-Kuh. It is also higher than Mont Blanc in the
Taupo Volcano ago, which is responsible for the shape of the modern caldera, and the Hatepe eruption, about 1,800 years ago. However, there have been many more eruptions, with major ones every thousand years or so (see timeline of last 10,000 years of eruptions). Considering recent history alone, the volcano has been inactive for an unusually long period of time, but considering its long-term activity, it was inactive for much longer between 8100 and 5100 BC (3,000 year inactivity, compared to the current 1,800 years) The Taupo Volcano erupts rhyolite, a viscous magma, with a high silica content. If the magma does