Around Umedo Tunnel
![](https://gkbn.kumagaku.ac.jp/minamata/wp-content/themes/minamata/image/marchives/konjyaku/main/past/past_65.jpg)
![](https://gkbn.kumagaku.ac.jp/minamata/wp-content/themes/minamata/image/marchives/konjyaku/main/now/now_65.jpg)
- Union members checking the barricades nearby Umedo Tunnel. On August 31, police forces intervened in picketing to allow strikebreaking to occur.
- Guardrails and fences above Umedo Tunnel.
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.