01 / The great ring levee
A lowland ringed by rivers,walled all round by a levee.
The town is bounded by the Ichino and Toki rivers to the north, the Arakawa to the east, the Iruma to the south and the Oppe to the west, and calls itself "an island surrounded by rivers". In the Keichō era Ina Tadatsugu enlarged small existing ring levees into the Kawajima-ryō Ōkakoi-zutsumi (川島領大囲堤, the great ring levee of Kawajima), which Matsudaira Nobutsuna later raised. Part of today's river embankment is built on it.
- Rivers on all four sides
- Great ring levee built in the Keichō era
- The base of today's embankment

