Kitamata River

…It is about 30 km long. The upper reaches are divided into the Kitamata River, which originates at Mt. Kobi and flows east through a fault valley, and the Minamimata River, which originates at Mt. Takate and forms the Mochikorobashi, Ohara, and Minamimata gorges. The two rivers join in the eastern part of Kinugawa Village to form the Kinugawa River, which then joins the Kitakami River in Hiraizumi Town. The northern drainage basin is located at the southern foot of the Kinugawa tilted land mass, which defines the southern edge of the Isawa alluvial fan. …

*Some of the terminology that refers to the Kitamata River is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…長さ約30km。上流は，媚（こび）山に源を発し断層谷を東流する北股川と，高手山に発し餅転（もちころばし），大原，南股の峡谷をなす南股川に分かれ，両川が衣川村東部で合流して衣川となり，平泉町で北上川に合流する。北部流域は胆沢（いさわ）扇状地の南縁を限る衣川傾動地塊の南麓にあたる。…

※「北股川」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