Shiribeshi-Toshibetsu River

Shiribeshi-Toshibetsu River
後志利別川
Looking downstream from the Majo Bridge
Native nameShiribeshi-Toshibetsu-gawa (Japanese)
Location
CountryJapan
StateHokkaidō
RegionHiyama
DistrictKudō District, Setana
MunicipalitiesImakane, Setana
Physical characteristics
SourceMount Oshamanbe
  locationImakane, Hokkaidō, Japan
  coordinates42°35′9″N 140°11′22″E / 42.58583°N 140.18944°E / 42.58583; 140.18944
  elevation972.6 m (3,191 ft)
MouthSea of Japan
  location
Setana, Hokkaidō, Japan
  coordinates
42°25′30″N 139°50′33″E / 42.42500°N 139.84250°E / 42.42500; 139.84250
  elevation
0 m (0 ft)
Length80 km (50 mi)
Basin size720 km2 (280 sq mi)
Discharge 
  average27.55 m3/s (973 cu ft/s)

The Shiribeshi-Toshibetsu River (後志利別川, Shiribeshi-Toshibetsu-gawa) is a Class A river in Hokkaidō, Japan. It flows through Hiyama District, and empties into the Sea of Japan.

It is the only Class A river in Southern Hokkaidō, and thus is considered to be extremely important for agriculture and flood control.

The river has been voted the "Cleanest River in Japan" by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) 10 times between 1987 and 2006.