Koyoshi River

Koyoshi River (Japanese: 子吉川（こよしがわ）, Hepburn: koyoshigawa) is a river in Akita Prefecture, Japan. It originates from Mount Chōkai, where the border of Akita Prefecture and Yamagata Prefecture is located, and flows through Yurihonjō and finally into Sea of Japan. The headstream of the river is called Chōkai River (鳥海川, chōkaigawa).[1][2] It has the third largest drainage area of the class A rivers that flow through Akita Prefecture, after Omono River and Yoneshiro River.[4]

Koyoshi River 子吉川
Koyoshi River in 2012
Location
Country	Japan
State	Honshu
Region	Akita
Physical characteristics
Source	Mount Chōkai [1][2]
• elevation	2,236[3] m (7,336 ft)
Mouth	Sea of Japan
• coordinates	39°23′26″N 140°00′51″E
Length	61[1][2] km (38 mi)
Basin size	1,190[1][2] km^2 (460 sq mi)

References

1. "日本の川 - 東北 - 子吉川 - 国土交通省水管理・国土保全局" (in Japanese). Ministry of Land, Infrastructure, Transport and Tourism, Japan. Retrieved December 28, 2017.
2. "子吉川(こよしがわ)とは - コトバンク" (in Japanese). kotobank. Retrieved December 28, 2017.
3. "気象庁 鳥海山" (in Japanese). Japan Meteorological Agency. Retrieved December 28, 2017.
4. "一級河川水系別延長等" (in Japanese). Ministry of Land, Infrastructure, Transport and Tourism, Japan. Retrieved December 28, 2017.