Odamaki Hills

...Three terraces have developed along the Arakawa River that runs through the basin: high (300-450m above sea level), medium (250-300m), and low (160-270m). The high and medium terraces, which are covered with loam layers, have been dissected to form hills, and are called the Odamaki Hills and Hitsujiyama Hills, respectively, from which the views of the basin are magnificent. Mulberry fields and rice paddies were cultivated on the flat, wide low terraces, and settlements developed, becoming the main stage for industrial activity and social life in the Chichibu region. ...

*Some of the terminology that refers to "Odamaki Hills" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…盆地内を流れる荒川沿いに，高位(標高300～450m)，中位(250～300m)，低位(160～270m)の三つの段丘が発達する。ローム層をのせる高位，中位の段丘は開析が進んで丘陵状をなし，それぞれ尾田蒔（おだまき）丘陵，羊山丘陵と呼ばれ，そこからの盆地内の眺望はすばらしい。平たん面が広がる低位段丘には桑園や水田が開かれ，集落も発達，秩父地方の産業活動や社会生活の主要舞台となった。…

※「尾田蒔丘陵」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