The has its source at Mount Norikura in the northern part of Gifu Prefecture, Japan, and flows into Toyama Prefecture, where it joins with the Jinzà « River. It is a Class 1 River.
The river was polluted with cadmium due to mining at the Kamioka mines (ç¥Â岡é±山 Kamioka Kà Âzan) and caused the itai-itai disease outbreak in downstream towns that began shortly before World War II.
The river passes through or forms the boundary of the following communities:
(mouth)