Dōzan River

33°55′42.26″N 133°31′25.6″E

Dōzan River
銅山川
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

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

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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