Drainage ditch at Yabusa
- The drainage ditch of Chisso from which people could see from the bridge of the entrance of the Yabusa area. A three-sided seal is not applied and both sides of the ditch are full of grass.
- The present drainage ditch. The three-sided seal of concreate has been applied.
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.