The is a

dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use ...

on the border of Mitake and

Yaotsu is a List of towns in Japan, town located in Kamo District, Gifu, Kamo District, Gifu Prefecture, Japan. , the town had an estimated population of 11,036 and a population density of 886 persons per km2, in 4311 households. The total area of the to ...

Gifu Prefecture is a prefecture of Japan located in the Chūbu region of Honshu. Gifu Prefecture has a population of 1,991,390 () and has a geographic area of . Gifu Prefecture borders Toyama Prefecture to the north; Ishikawa Prefecture to the northwest, F ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

. It was built on the upper reaches of the

Kiso River The is a river in the Chubu region of Japan roughly long, flowing through the prefectures of Nagano, Gifu, Aichi, and Mie before emptying into Ise Bay a short distance away from the city of Nagoya.Nussbaum, Louis Frédéric ''et al.'' (2005) ...

system. It is a

gravity dam A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by using only the weight of the material and its resistance against the foundation to oppose the horizontal pressure of water pushing against it. ...

that is tall. It was built after

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

as part of a large, nationwide dam building project.

Surrounding area

Sosui Gorge (蘇水峡 ''Sosui-kyō'') was formed by the completion of the dam. Along with

Ena Gorge is a river valley located at the mid reaches of the Kiso River, which runs through the cities of Ena and Nakatsugawa in Gifu Prefecture, Japan. Ena Gorge was so named by Shiga Shigetaka, a geographer of that time who praised the harmony of th ...

further upstream, the area is part of the Hida-Kisogawa Quasi-National Park. Maruyama Dam lake

References

Dams in Gifu Prefecture Hydroelectric power stations in Japan Dams completed in 1955 1955 establishments in Japan {{Japan-powerstation-stub