fumarole inside the crater of the active volcano

active and ash background big caldera climate crater east emitting environment eruption field fog form fumarola fumarole gas geology geothermal geyser heat hot iceland inside kamchatka landscape lava magma mineral mountain mutnovka mutnovsky national nature outdoor park people produces rock russia smell smelly smoke steam sulfur sulfurous sulphur surface the thermal tourism travel trekking vapors view volcanic volcano wild yellow