- a volcanic mountain in southwestern Japan, in central Kyushu, noted for its vast caldera. 5,223 feet (1,593 meters); crater 12 miles (19 kilometers) across.
- a group of five volcanic cones in Japan on central Kyushu, one of which, Naka-dake, has the largest crater in the world, between 16 km (10 miles) and 24 km (15 miles) in diameter. Highest cone: 1592 m (5223 ft)
