Klyuchevskaya Sopka is a stratovolcano, the highest mountain of Siberia and the highest active volcano of Eurasia. Its steep, symmetrical cone towers about 100 kilometres from the Bering Sea. The volcano is part of the natural Volcanoes of Kamchatka UNESCO World Heritage Site. Klyuchevskaya Sopka is ranked 15th in the world by topographic isolation. Klyuchevskaya appeared 7,000 years ago.