Kikuchi River

The Kikuchi River flows through the northern part of Kumamoto Prefecture, Kyūshū, Japan. The source of the river is Fukaba, Aso city near Mt. Aso at the height of and flows west through the Kikuchi Valley. It turns south near Kikusui and empties into the Shimabara Bay in the Ariake sea. Land reclamation is taking place at its mouth.
The river has a total length of. It begins at an elevation of and has a catchment area of. The width of the river ranges from and the current velocity and discharge varies greatly through the year, from.