Hyōtanjima
Hyōtanjima is an uninhabited island in the Geiyo Islands chain in the Seto Inland Sea, in Japan. The island is split between Hiroshima Prefecture and Ehime Prefecture at a point where it is wide, the country's shortest prefectural border.
Etymology
The name Hyōtanjima literally translates to "calabash island", which refers to its shape.Geography
Hyōtanjima is a calabash-shaped island located in the Seto Inland Sea, and is part of the Geiyo Islands chain. It is east of Ōmishima Island in Ehime, and about the same distance west of Ikuchijima Island in Hiroshima. It has a circumference of and an area of, and there are two hills on the island, one in the north and one in the south. The higher of the two hills is above sea level.Five of the islands in the Seto Inland Sea are split by prefecture borders, including this one. The north end of Hyōtanjima is part of Tarumi, Setoda-cho in Onomichi, Hiroshima, while the south end belongs to Iguchi, Kamiura-cho in Imabari, Ehime. The border is around long, considerably shorter than the next shortest prefecture borders the Tochigi–Saitama border and the Okayama–Kagawa border, which are and respectively.