snow-covered mountain with flowing lava displays nature's raw power during a volcanic eruption at dusk

39aph39 activity adventure ash boiling cascades cliff contrast cracked crater danger dark displays dramatic dusk earth environment environmental erupting eruption exploding exploration explosive extreme fiery fire flowing formations fumes gas geographic geology geothermal glowing heat hill ice landscape lava molten mountain national natural nature object outdoors phenomenon plain power raw rock s scenery science sky smog smoke snow snow-covered snowfield steam strength striking sunrise sunset surrounded temperature terrain unfolds volcanic volcano wilderness