Mount Osore (恐山, Osore-zan) is a caldera volcano in the center of remote Shimokita Peninsula of Aomori Prefecture, Japan. According to the Smithsonian National Museum of National History, it peaks at 879 meters (or 2,884 feet) and its last eruption was noted in 1787 (Global). While known regionally as Mount Osore, it is locally referred to as Yake-yama (or “Burning Mountain”) due to minimal activity which occurred throughout the past century.