Ekawasaki - Ekawasaki

Japanese: 江川崎 - えかわさき

…Except for the small plains around Nakamura, including the Kubokawa Basin in the middle reaches and the Nakasuji River Basin in the lower reaches, most of the river basin is mountainous, and the middle reaches between Taisho-cho and Nishitosa-mura show a remarkable meandering. Until the early Showa period, the river was also used for river transportation, and water transportation between Ekawasaki in Nishitosa-mura, where it joins the Yoshino River, and Shimoda in Nakamura City at the river mouth was particularly active. Shimoda flourished as the outer port of Nakamura and as a distribution and shipping point for firewood, charcoal, and lumber since the Middle Ages, but economic development was delayed due to the large amount of sedimentation near the river mouth and the fact that most of the river basin is depopulated mountain villages, and as a result, it did not develop as a modern port and declined. …

From [Nishi Tosa Village]

...In particular, in the beautiful forests of the Kuroson area, at the top of the Kuroson River, there was an incident of illegal logging by the neighboring Iyo Uwajima Domain in the early Edo period. Ekawazaki, where the Shimanto River and Yoshino River join, was an important transportation hub, with boat transport connecting it to Shimoda (now Nakamura City) at the mouth of the Shimanto River. Silkworm farming and timber production are carried out here, but cultivation of shiitake mushrooms, chestnuts, and strawberries is also thriving, and livestock farming is also on the rise. ...

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…中流部の窪川盆地，下流部の中筋川流域を含めた中村付近の小平野を除いて，流域の大部分は山間地で，とくに中流部の大正町～西土佐村間は著しい穿入蛇行（せんにゆうだこう）をみせる。昭和初期までは河川交通にも利用され，とくに吉野川との合流点である西土佐村江川崎と河口の中村市下田間の水運はさかんであった。下田は，中世以降中村の外港，薪炭，木材の集散･積出地として栄えたが，河口付近の土砂の堆積が多く，また流域の大部分が過疎山村地帯であるため経済開発も遅れ，近代港湾としては発展をみず，衰退した。…