Iwase

…The name of a place on the right bank of the mouth of the Jinzu River in Shinkawa County, Etchu Province (present-day Toyama City). It has been a key transportation point since ancient times, and Iwase Station appears in the Engishiki, but Higashi-Iwase was first seen in 1572 (Genki 3). In the early modern period, the course of the Jinzu River changed, forming a port, which connected with Hida Province and became a relay point for Hida timber and Noto salt. …

*Some of the terminology that mentions "Iwase" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…越中国新川郡(現，富山市)，神通川河口右岸の地名。古代からの交通の要所で，《延喜式》に磐瀬駅が見えるが，東岩瀬の初見は1572年(元亀3)。近世初期に神通川の川筋が変化して港を形成，飛驒国と結ばれ，飛驒木材，能登塩の中継点となる。…

※「磐瀬」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