The len ticular cloud formation creates a breathtaking image over the conical-shaped Klyuchevskaya Sopka mountain in east Russia.

The len ticular cloud formation creates a breathtaking image over the conical-shaped Klyuchevskaya Sopka mountain in east Russia. (Photo: Ivan Dementievskiy). Klyuchevskaya Sopka is a stratovolcano, the highest mountain on the Kamchatka Peninsula of Russia and the highest active volcano of Eurasia. The volcano is part of the natural Volcanoes of Kamchatka UNESCO World Heritage Site.