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Ibi River
Kiso River mouth in Ise Bay.jpg
Ibi River (left) flowing into Ise Bay. To the right is Kiso River.
Native name揖斐川  (Japanese)
Physical characteristics
 • locationMount Kanmuri
 • elevation1,257 m (4,124 ft)
 • location
Ise Bay
Length121 km (75 mi)
Basin size1,840 km2 (710 sq mi)
 • average84.28 m3/s (2,976 cu ft/s)
Basin features
River systemKiso River
Nishidaira Dam on the Ibi River in Ibigawa
Nishidaira Dam on the Ibi River in Ibigawa

The Ibi River (揖斐川, Ibi-gawa) is a tributary of the Kiso River located in Gifu and Mie Prefectures in Japan. Along with the Nagara and Kiso rivers, the Ibi is the third of the Kiso Three Rivers of the Nōbi Plain. It is one of Japan's first-class rivers.[citation needed] The former Tōkaidō post station of Kuwana-juku was located on the western banks of this river during the Edo period.


The Ibi River has its source in Mount Kanmuri,[1] which is located in the town of Ibigawa in Gifu Prefecture, and from there flows south. During its course, it temporarily merges with the Kiso and Nagara Rivers. In the city of Kuwana, Mie Prefecture, it finally joins with the Nagara River for good and continues flowing until Ise Bay.

River communities

Gifu Prefecture

Anpachi, Gōdo, Ibigawa, Ikeda, Kaizu, Mizunami, Ōno, Ōgaki, Wanouchi, Yōrō

Mie Prefecture


Additional notes


  1. ^ Tokuyama Dam and the Ibi River Archived 2008-05-16 at the Wayback Machine. (in Japanese) Japan Water Agency. Accessed June 27, 2008.
  2. ^ Ibigawa Marathon Public Site. Ibigawa Marathon Committee. Accessed September 18, 2007.

35°03′57″N 136°42′07″E / 35.065927°N 136.701972°E / 35.065927; 136.701972Coordinates: 35°03′57″N 136°42′07″E / 35.065927°N 136.701972°E / 35.065927; 136.701972 (confluence with Nagara River)