Tedori River

Japanese: 手取川 - てどりがわ

A river that flows through the southern part of the Kanazawa Plain in Ishikawa Prefecture. Its total length is 72 km. It originates at Mt. Hakusan, which forms the border between Ishikawa and Gifu Prefectures, and flows north, joining the Ozoe River, which also originates at Mt. Hakusan, and the Dainichi River, which originates at Mt. Dainichi in the west. It is also called the Ushiku River from the confluence of the Yanagidani River and the Yunotani River at the uppermost reaches to the confluence with the Ozoe River. It flows out into the plain in the northern part of Hakusan City, turns west, and flows into the Sea of Japan while forming a wide alluvial fan. The upper reaches are the Tetori Group of the Mesozoic Jurassic and Cretaceous periods, and in the southern part of Hakusan City, there is a silicified wood production area designated as a national natural monument. Both the main and tributaries carve deep V-shaped valleys, and hot springs such as Chumiya, Iwama, and Hakusan well up, and the Iwama fountain towers upstream of the Ozoe River are a national special natural monument. Many dams have been built to use meltwater from heavy snowfall. In the middle reaches of the river, river terraces have developed, and the Tedori Gorge is located. The area has been designated as Shishiku-Tedori Prefectural Natural Park. The alluvial fan was converted into rice paddies during the Edo period, and is known as a producer of early-season rice. It is the central grain-producing region of the Kanazawa Plain, and is irrigated by the Shichika Irrigation Canal.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

石川県金沢平野の南部を流れる川。全長 72km。石川県，岐阜県の県境をなす白山に源流をもち，同じく白山に発する尾添川（おぞうがわ），西部の大日山に発する大日川などを合わせながら北流する。最上流部の柳谷川と湯の谷川合流点から尾添川との合流点までを牛首川とも呼ぶ。白山市北部で平野に出て西に流れを変え，広い扇状地を形成しつつ日本海に注ぐ。上流域は中世代ジュラ紀・白亜紀の手取層群で，白山市南部には国の天然記念物に指定されているケイ化木産地がある。本・支流とも深い V字谷を刻み，中宮，岩間，白山などの温泉が湧き，尾添川上流の岩間の噴泉塔群は国の特別天然記念物。豪雪の溶融水を利用して多数のダムが建設されている。中流部には河岸段丘が発達し，手取峡谷があり，一帯は獅子吼・手取県立自然公園に指定されている。扇状地は江戸時代には水田化が完了し，早場米の産地として知られ，金沢平野の中心的穀倉地帯で，七ヶ用水で灌漑されている。

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