volcano gorshkov - first cinder cone of north breakthrough great tolbachik fissure eruption 1975

adventure alpine beauty black bomb caldera climb cone crater earthquake eruption flow geography glow gorshkov gorshkova hike hiking horizon hot icecap kamchatka landscape lava lifeless magma mountain natural nature orange panorama peak pumice red reserve ridge rock rocky russia sand scientist slope stone tolbachic tolbachik travel udina view volcanic volcano