uzon volcano caldera on the kamchatka peninsula. russia

actively activity area brownish burst caldera columns comes crust cultural destroyed earths eastern extinct field fields formation fumarole geothermal geyzernaya green groves heritage hosts hundreds hydrothermal interspersed itself kamchatka kronotsky lake largest located manifestation manifesting mineral modern natural oil ore part peninsula place planet reserve russia south steam territory together touristers tundras unesco unique uzon volcanic volcanism volcano where world yellow youngest