The is a Class A river in southern Ishikawa Prefecture in the Hokuriku region of Japan. The river originates on Hakusan, the highest peak in the Hakusan National Park on the border between Ishikawa and Gifu Prefecture, and flows in a generally northern direction to the Sea of Japan. The river is used extensively for irrigation, and for the generation of hydroelectric power. The Battle of Tedorigawa was fought on the banks of the river in 1577.
Dams and hydroelectric power generation RiverName Height Volume Type Generation (KW)Tedori Tedorigawa Dam Rockfill 250,000 Tedori Tedorigawa No.2 Dam Concrete Gravity 87,000 Ozo Oguchi Dam Concrete Gravity 17,600 Ozo Yoshinodani Dam Concrete Gravity 13,300 Ozo Chugu Dam Concrete Gravity 3,000 Dainichi Dainichigawa Dam Concrete Gravity 9,000 Tedori Tedorigawa No.3 Dam Concrete Gravity 30,000
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