Mount Hōō is located in the western portion of Yamanashi Prefecture, Japan. Because the mountain has three peaks, it is also called Hōō Sanzan. It is in Minami Alps National Park and is one of the 100 Famous Japanese Mountains. Mount Hōō is separated from most of the other mountains in the Akaishi range, giving a wider view of the surrounding mountains. Also, most mountains int the range have a reddish-brown color, but Mount Hōō and Mount Kaikoma are the two exceptions, as they are granite mountains.
Metal ore was found in the mountain during the Sengoku period and, by the Edo period, the mountain was exploited for its metals and forest products.