Koyoshi River
子吉川
Koyoshi River seen from Kurosawa Bridge 20210805.jpg
Koyoshi River in 2021
Location
CountryJapan
StateHonshu
RegionAkita
Physical characteristics
SourceMount Chōkai[1][2]
 • elevation2,236[3] m (7,336 ft)
MouthSea of Japan
 • coordinates
39°23′26″N 140°00′51″E / 39.3906°N 140.0141°E / 39.3906; 140.0141Coordinates: 39°23′26″N 140°00′51″E / 39.3906°N 140.0141°E / 39.3906; 140.0141
Length61[1][2] km (38 mi)
Basin size1,190[1][2] km2 (460 sq mi)

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]

References

  1. ^ a b c d "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. ^ a b c d "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.