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Dōzan River

Coordinates: 33°55′42.26″N 133°31′25.6″E / 33.9284056°N 133.523778°E / 33.9284056; 133.523778
From Wikipedia, the free encyclopedia

33°55′42.26″N 133°31′25.6″E / 33.9284056°N 133.523778°E / 33.9284056; 133.523778

Dōzan River
銅山川
Map
Location
CountryJapan
Physical characteristics
Source 
 • locationMount Kanmuri
 • elevation1,732 m (5,682 ft)
Mouth 
 • location
Yoshino River
Length55 km (34 mi)
Basin size280 km2 (110 sq mi)
Discharge 
 • average500 m3/s (18,000 cu ft/s)

The Dōzan River (銅山川, Dōzan-gawa) is the largest branch of the Yoshino River and flows through Ehime and Tokushima prefectures in Japan.[1] Its name was derived from the Besshi copper mine that is now closed. In Tokushima Prefecture, it is called the Iyo River (伊予川 Iyo-gawa).[2]

Geography

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The rivers originates Mount Kanmuri on the borders of Ehime and Kōchi prefectures. It then flows through Shikokuchūō in Ehime Prefecture and Miyoshi in Tokushima Prefecture, before joining with the Yoshino River.

History

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In 1900, poisons from the various minerals excavated at the nearby copper mine seeped into the river, poisoning the local populations downstream.

References

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  1. ^ http://www.skr.mlit.go.jp/tokushima/yoshinoriver/doc/090827final/plan_yoshinoriver.pdf (Japanese)
  2. ^ "四国中央市の文化財 「金砂湖及び富郷渓谷」 (Japanese)". Archived from the original on 2012-06-30. Retrieved 2012-01-15.