Demon (volcano) located on terrain feature Iturup
Demon (Russian: Демон; Ainu: カムイヌプリ, Kamui-nupuri; Japanese: 神威岳, Kamui-dake) is a stratovolcano located at the northern end of Iturup Island, Kuril Islands, Russia.
The Ilya Muromets Waterfall, one of the highest in Russia, falls abruptly from the eastern slope of the volcano into the Pacific Ocean.