The are the three major rivers that make up the

alluvial plain An alluvial plain is a plain (an essentially flat landform) created by the deposition of sediment over a long period by one or more rivers coming from highland regions, from which alluvial soil forms. A ''floodplain'' is part of the process, bei ...

area of the Nōbi Plain of

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

. The three rivers are the Kiso River, the

Ibi River The is a tributary of the Kiso River located in Gifu Prefecture, Gifu and Mie Prefectures in Japan. Along with the Nagara River, 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 ...

and the Nagara River. Given their location, they are sometimes referred to as the Nōbi Three Rivers (濃尾三川 ''Nōbi Sansen'').

Flow

At various points downstream, the rivers flow together and then separate again, often leading to flooding and water damage. Since the

Edo period The , also known as the , is the period between 1600 or 1603 and 1868 in the history of Japan, when the country was under the rule of the Tokugawa shogunate and some 300 regional ''daimyo'', or feudal lords. Emerging from the chaos of the Sengok ...

, much work has been done to plan dykes and other structures that will help control the rivers. In the late part of the 19th century, rulers of the

Satsuma domain The , briefly known as the , was a Han system, domain (''han'') of the Tokugawa shogunate of Japan during the Edo period from 1600 to 1871. The Satsuma Domain was based at Kagoshima Castle in Satsuma Province, the core of the modern city of ...

worked with the Dutch engineer

Johannis de Rijke was a Dutch civil engineer and a o-yatoi gaikokujin, foreign advisor to the Japanese government in Meiji period Japan. He made significant contributions in the enhancement of Japan's river systems and the development of its port facilities, whic ...

to help with flood control of the area.

Attractions

Kiso Sansen Park (木曽三川公園 ''Kiso Three Rivers Park'', ''Kiso Sansen Kōen'') is Japan's largest national government park which straddles Aichi,

Gifu is a Cities of Japan, city located in the south-central portion of Gifu Prefecture, Japan, and serves as the prefectural capital. The city has played an important role in Japan's history because of its location in the middle of the country. Durin ...

and

Mie Prefecture is a Prefectures of Japan, prefecture of Japan located in the Kansai region of Honshu. Mie Prefecture has a population of 1,781,948 () and has a geographic area of . Mie Prefecture is bordered by Gifu Prefecture to the north, Shiga Prefecture an ...

.Welcome to Kiso Sansen Park
Kiso Sansen National Government Park. Accessed April 30, 2010. The center of the park is located in the city of Kaizu in Gifu Prefecture. From the park, visitors can see each of the three rivers, as well as

Ise Bay is a bay located at the mouth of the Kiso Three Rivers between Mie prefecture, Mie and Aichi prefecture, Aichi Prefectures in Japan. Ise Bay has an average depth of and a maximum depth of . The mouth of the bay is and is connected to the small ...

and the mountains surrounding the Nōbi Plain.The park of Kiso three rivers
City of Kaizu. Accessed March 2, 2008.

References

{{Rivers of Japan Rivers of Aichi Prefecture Rivers of Gifu Prefecture Rivers of Mie Prefecture Rivers of Nagano Prefecture Parks in Aichi Prefecture Parks and gardens in Gifu Prefecture Parks and gardens in Mie Prefecture Rivers of Japan

Flow

Attractions

See also

References