Omono River

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)
Discharge	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.

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)