The Chisso plant seen from the east gate
![](https://gkbn.kumagaku.ac.jp/minamata/wp-content/themes/minamata/image/marchives/konjyaku/main/past/past_43.jpg)
![](https://gkbn.kumagaku.ac.jp/minamata/wp-content/themes/minamata/image/marchives/konjyaku/main/now/now_43.jpg)
- The facilities and drainage ditch of Chisso seen from the east gate. There were many bridges over the 3 meter-wide ditch.
- The present drainage ditch of Chisso. The bridge made of thin wooden boards has been replaced with a new one with metal hand rails.
Reference sources
- The Edo Period:
The Picture Map of Ashikita-gun, Collection of Kumamoto Gakuen University Library, the late Edo Period. - The Meiji Period:
The Japanese National Atlas at the end of Edo Period and in the Meiji Period, Kashiwa Shobo, Collection of Kumamoto Gakuen University Library, 1983.