Omono River

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Omono River
Omonogawa Bridge
Native name 雄物川
Country Japan
Basin features
Main source Mount Daisen
920 m (3,020 ft)
River mouth Sea of Japan
0 m (0 ft)
River system Omono River
Basin size 4,710 km2 (1,820 sq mi)
Physical characteristics
Length 133 km (83 mi)
  • Average rate:
    276.2 m3/s (9,750 cu ft/s)

The Omono River (雄物川?, Omono-gawa) is located in Akita Prefecture, Japan. The river flows from Mount Daisen on the border of Akita Prefecture with Miyagi and Yamagata Prefectures in the city of Yuzawa and drains into the Sea of Japan at the city of Akita. The river's drainage basin is essentially the entire southern half of Akita Prefecture. The river is free of dams for its entire length. It is regarded as a "first class river" in the Japanese river classification system.[1]


  1. ^ Japanese Ministry of Internal Affairs (1961). Japan statistical yearbook, Vol.12. Nihon Tōkei Kyōkai. 

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39°41′28″N 140°03′37″E / 39.691174°N 140.060139°E / 39.691174; 140.060139Coordinates: 39°41′28″N 140°03′37″E / 39.691174°N 140.060139°E / 39.691174; 140.060139 (confluence with Ibi River)