赤石山脈
is a mountain located in the Akaishi Mountains in both Aoi-ku, Shizuoka, Shizuoka Prefecture and Iida, Nagano Prefecture, in the Chūbu region of Japan. It is tall and part of the Akaishi Mountains. It is the mountain in Minami Alps National Park located in the south most. It is also included on the list of "100 Famous Japanese Mountains." There are several mountain climbing trails and Mountain hut around the mountain. There is the Hijiri-Daira hut in the Mountain pass in the south.