Did you know that Mt. Fuji is actually a Stratovolcano! Not only is it one volcano – it’s three! The mount is three separate volcanoes placed on top of one another. The bottom layer is the Komitake volcano, then the Kofuji volcano, then Fuji, which is the youngest. Mt Fuji is indeed still active. Although, the last time it erupted was in 1707, over 300 years ago!