Kusaka River

...It is located on the south bank of the midstream of the Niyodo River, and borders Tosa City to the south. The northern and southern parts are occupied by limestone mountains, and the Kusaka River, which flows east through the center, joins the Niyodo River at the eastern end of the village. The Kusaka River basin is low-lying and humid, and although rice is cultivated, vegetable, mandarin orange, and tea cultivation in the fields and livestock farming are thriving.

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…仁淀川中流南岸に位置し，南は土佐市に接する。北部と南部は石灰岩山地で占められ，中央部を東流する日下（くさか）川が村の東端で仁淀川に合流する。日下川流域は低湿で生産性は低く，米作も行われるが畑地での野菜，ミカン，茶の栽培や畜産が盛ん。…

※「日下川」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