01 / Aoni channel
In the Man'en-Bunkyu years, the hamlet's 24 householdsdug a channel of about 3 km.

The village history says that in the Man'en-Bunkyu era (1860-63), the 24 households then in Aoni dug an irrigation channel, the Aoni upper channel, about 3 km long, and terraced paddies opened around the hamlet. The stone walls of the terraces are thought to have been built by around that time. The hamlet was selected as an Important Preservation District for Groups of Traditional Buildings on 4 December 2000.
- Channel about 3 km long
- Dug by the hamlet's 24 households
- Selected 4 December 2000


