An island floating in Lake Nakaumi in the northeastern part of Shimane Prefecture. It forms the center of Yatsuka Town, Matsue City. Its area is 4.89 square kilometers. In 1981, a dike road was built between the island and Omizaki in Matsue City, and a bus service began operating there. It is an aspidis-type volcanic island made of hard, porous basalt, with the highest point being Mt. Otsuka (42 meters), and the island as a whole is a gently sloping plateau. The approximately 200-meter lava cave in the eastern part of the island is called Yuuki-do, and is designated as a special natural monument as a "lava tunnel." There is also a second lava cave called Ryukei-do, which is also designated as a national natural monument. It is known for cultivating medicinal ginseng and the prefectural flower, peonies. [Hikari Iida] [Reference] | |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
島根県北東部の中海(なかうみ)に浮かぶ島。松江市八束(やつか)町の中心部をなす。面積4.89平方キロメートル。1981年(昭和56)松江市大海崎(おおみざき)との間に堤防道路が設けられ、バスも運行されるようになった。アスピーテ型の火山島で堅硬多孔質の玄武岩からなり、最高点は大塚山(42メートル)で、島全体は緩傾斜の台地性地形である。東部にある約200メートルの溶岩洞穴は幽鬼洞とよばれ、「溶岩隧道(ずいどう)」として特別天然記念物に指定されている。また竜渓洞とよばれる第二溶岩洞穴があり、これも国の天然記念物に指定されている。薬用ニンジンや県花のボタン栽培で知られる。 [飯田 光] [参照項目] | |出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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