Komarov Volcano — Russia

Komarov volcano is a complex structure along the Gamchen ridge. The summit area includes two irregular craters ~300m in diameter. Lengthy Holocene lava flows extend to the east and west. Growth began about 1,500 years ago following cessation of activity at Vysoky volcano. No reported eruptions are known, but the summit region has undergone extensive hydrothermal alteration, and fumarolic areas occur there and on the northern and southern flanks.