The is a

river A river is a natural flowing watercourse, usually freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the ...

that flows from

Gifu Prefecture is a Prefectures of Japan, prefecture of Japan located in the Chūbu region of Honshu. Gifu Prefecture has a population of 1,991,390 () and has a geographic area of . Gifu Prefecture borders Toyama Prefecture to the north; Ishikawa Prefecture ...

Toyama Prefecture is a prefecture of Japan located in the Chūbu region of Honshu. Toyama Prefecture has a population of 1,044,588 (1 June 2019) and has a geographic area of 4,247.61 km2 (1,640.01 sq mi). Toyama Prefecture borders Ishikawa Prefecture to th ...

in Japan. It is called Miya River (宮川 ''Miya-gawa'') in Gifu. It is in length and has a watershed of .

Geography

The river flows from Mount Kaore in Gifu and meets the

Takahara River 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 Jinzū River. It is a Class 1 River. The river was polluted with cadmium due to mining at the Ka ...

at the border between Gifu and Toyama. Then it flows straight to the north and pours into

Toyama Bay is a bay located on the northern shores of the Hokuriku region of Honshu, Japan on the Sea of Japan. The bay borders Toyama and Ishikawa prefectures. The bay is known for the mirages on the horizon during the winter months and for being a spawn ...

and the

Sea of Japan The Sea of Japan is the marginal sea between the Japanese archipelago, Sakhalin, the Korean Peninsula, and the mainland of the Russian Far East. The Japanese archipelago separates the sea from the Pacific Ocean. Like the Mediterranean Sea, it h ...

. It once meandered through the city of Toyama, but the new waterway was constructed in the west of the city to avoid floods. Toyama City Hall and other governments are located on the reclaimed land of the old river. ;Toyama Prefecture: : Toyama (city)

Tributary

* Ida River * Kumano River * Nagamune River *

Pollution

The river was polluted with

cadmium Cadmium is a chemical element with the symbol Cd and atomic number 48. This soft, silvery-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Like zinc, it demonstrates oxidation state +2 in most of ...

due to

mining Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic ...

and caused the itai-itai disease in the downstream towns around

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...

Naming

The

Japanese Navy , abbreviated , also simply known as the Japanese Navy, is the maritime warfare branch of the Japan Self-Defense Forces, tasked with the naval defense of Japan. The JMSDF was formed following the dissolution of the Imperial Japanese Navy (IJN ...

cruiser was named after this river.

External links

(mouth) {{DEFAULTSORT:Jinzu River Rivers of Toyama Prefecture Rivers of Gifu Prefecture Rivers of Japan