Takahara River
| The Takahara River (高原川, Takahara-gawa) has its source at Mount Norikura in the northern part of Gifu Prefecture, Japan, and flows into Toyama Prefecture, where it joins with the Jinzū River. It is a Class 1 River. The river was polluted with cadmium due to mining at the Kamioka mines (神岡鉱山 Kamioka Kōzan) and caused the itai-itai disease outbreak in downstream towns that began shortly before World War II. | ||||||
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| Length： 59.4 km (36.9 mi) | ||||||
| Basin size： 781.6 km2 (301.8 sq mi) | ||||||
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