The volcano that dominates the Niseko area is Mt Yotei, or Yotei-san. currently sleeping, this typical strato-volcano is 1898m high. Yotei-san was formed approximatively 10,000 years ago. it's main portion being formed by lava from three eruption. Mt Yotei's nick name is "Ezo Fuji" as the "Fuji of Hokkaido" due to it's resemblance with its Honshu cousin.