52°27'N, 158°12'E, summit elevation 2323 m; Last eruption 1961
The volcano is located in Southern Kamchatka, about 70 km to the southwest from Petropavlovsk-Kamchatsky. Mutnovsky is one of the most active volcanoes of the southern Kamchatkan. Principal hazards are ash plumes, ash falls, and lahars. The volcano is a volcanic complex consisting of four overlapping stratovolcanoes capped by a number of summit craters up to 1.3 km wide. The most of the active vents is on the southwestern slopes.
It has numerous and various fumarolic fields where one can see all different forms of modern gas-hydro-thermal activity with magnificent structures of volcanic sulfur of 2,5 m. high and 5 m. in diameter. Some of these structures contains rare minerals, such as markazite and metacinnabarite. Not far from active craters, glaciers and lakes thermal springs are located. The most impressive of them are Severo-Mutnovskiye and Datchnye with vapor-gas spurts, boiling muds, hot lakes and heated bogs. River Vulkannaya flows down from the crater of volcano forms 80 meters-high waterfall and deep canyon Opasny. All this specific features make Mutnovski volcano unique and allow to put it in a line with the most outstanding thermal fields of the world.