Anayama Plateau - Anayamadaichi

...Each tributary forms a complex alluvial fan, and the Midai River alluvial fan in particular is about 40 km2 and is known as a typical alluvial fan in Japan, with peach and grape orchards that were introduced around the end of the Meiji era spreading across it. On the left bank from Kobuchizawa to Nirasaki, a plateau formed by the Yatsugatake mudflow (Nirasaki mudflow) forms a cliff 60 to 100 meters high, called the Shichirigaiwa Plateau (Anayama Plateau). The Kamanashi River has been prone to flooding since ancient times, and recently it overflowed during Typhoon No. 7 and the Ise Bay Typhoon in 1959, causing great damage around Nirasaki. ...

*Some of the terminology that refers to the Anayama Plateau is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…各支流は複合扇状地を形成し，とくに御勅使川扇状地は約40km2あって日本の典型的な扇状地として知られ，明治末ごろ導入されたモモ，ブドウなどの果樹園が広がる。小淵沢から韮崎までの左岸は八ヶ岳泥流(韮崎泥流)からなる台地が高さ60～100mの絶壁となり，七里ヶ岩台地(穴山台地)と呼ばれる。釜無川は古くから洪水が多く，最近では1959年の台風7号，伊勢湾台風ではんらんし，韮崎付近に大きな被害を与えた。…

※「穴山台地」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報