Toshima topographic maps

The island is formed by two smaller stratovolcanoes - Higashimine (東峰) to the east, with a maximum elevation of 494.8 metres (1,623 ft) and Nishimine (西峰) to the west, with a maximum elevation of 259 metres (850 ft). The only known volcanic activity on either peak was towards the end of the Edo period,…

Average elevation: 154 ft

The island is an andesite – dacite stratovolcano formed by two summit craters, Biroyama (ビロ山) 355.5 metres (1,166 ft) and Nakadake (中岳). 464 metres (1,522 ft). Mitake (御岳山) 584 metres (1,916 ft), the highest elevation on the island, is a lava dome. Lava flows in the northern portion of the…

Average elevation: 367 ft

Suwanosejima is the second largest of the islands in the Tokara archipelago, and is located 21 kilometres (11 nmi) southwest from Nakanoshima. The highest elevation is Otake (御岳), with a height of 796 metres (2,612 ft) above sea level, which is the exposed cone of an active stratovolcano arising from the…

Average elevation: 348 ft

The island is formed by two smaller stratovolcanoes - Higashimine (東峰) to the east, with a maximum elevation of 494.8 metres (1,623 ft) and Nishimine (西峰) to the west, with a maximum elevation of 259 metres (850 ft). The only known volcanic activity on either peak was towards the end of the Edo period,…

Average elevation: 13 ft

Average elevation: 89 ft

Average elevation: 7 ft

Average elevation: 10 ft

Tairajima is located 32 kilometres (17 nmi) southwest of Nakanoshima, and is the second smallest inhabited islands in the archipelago. The island has an area of approximately 2.08 square kilometres (0.80 sq mi) with a length of about 1.5 kilometres (0.93 mi) and a width of 1.0 kilometre (0.62 mi). The highest…

Average elevation: 72 ft

Average elevation: 3 ft

Average elevation: 433 ft