| Teshio River (Teshio-gawa) | |
| 天塩川 | |
| River | |
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View from a train crossing a bridge on the Sōya Main Line (September 2008)
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| Country | Japan |
|---|---|
| State | Hokkaidōse |
| Regions | Rumoi, Kamikawa |
| Districts | Shibetsu, Nayoro, Nakagawa, Teshio |
| Municipalities | Bifuka, Otoineppu, Nakagawa, Teshio, Horonobe |
| Source | Mount Teshio |
| - location | Shibetsu, Hokkaidō, Japan |
| - elevation | 1,558 m (5,112 ft) |
| - coordinates | 43°57′52″N 142°52′51″E / 43.96444°N 142.88083°E |
| Mouth | Sea of Japan |
| - location | Teshio and Horonobe, Hokkaidō, Japan |
| - elevation | 0 m (0 ft) |
| - coordinates | 44°52′44″N 141°44′18″E / 44.87889°N 141.73833°ECoordinates: 44°52′44″N 141°44′18″E / 44.87889°N 141.73833°E |
| Length | 256 km (159 mi) |
| Basin | 5,590 km2 (2,158 sq mi) |
| Discharge | |
| - average | 110 m3/s (3,885 cu ft/s) |
The Teshio River (天塩川 Teshio-gawa?) is a river in Hokkaido, Japan. At 256 kilometres (159 mi), it is the fourth longest river in Japan.
The name of the river derives from an Ainu word meaning "fishing weir."