Tokachi River

Last updated
Tokachi River
Tokachi-gawa, Tokapci
Iwamatsu-51-r1.JPG
Iwamatsu Dam in Shimizu (September 2007)
Tokachi River
Japan natural location map with side map of the Ryukyu Islands.jpg
Red pog.svg
Native name
Location
Country Japan
State Hokkaidō
Region Tokachi
District Kamikawa, Nakagawa
Municipalities Shintoku, Toyokoro
Physical characteristics
Source 
  location Shintoku, Hokkaidō, Japan
Mouth Pacific Ocean
  location
Toyokoro, Hokkaidō, Japan
  coordinates
42°41′42″N143°39′58″E / 42.6950°N 143.6661°E / 42.6950; 143.6661
  elevation
0 m (0 ft)
Length156 km (97 mi) [1]
Basin size9,010 km2 (3,480 sq mi) [1]
Discharge 
  average71 m3/s (2,500 cu ft/s)
Basin features
Population340,000 [1]

Tokachi River (十勝川, Tokachi-gawa) is a river in Hokkaidō, Japan.

Etymology

In 1820, the explorer Takeshiro Matsuura (松浦 武四郎) proposed "Tokachi" as the name of the surrounding Tokachi Province, with each character corresponding to a Japanese homophone. The province was named after this river, which in turn was derived from the Ainu language word "tokapci" (トカㇷ゚チ).

Although the exact origins of "tokapci" were unknown, Hidezo Yamada, an Ainu language researcher, proposed these origins:

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References

  1. 1 2 3 日本の川 - 北海道 - 十勝川 [Rivers of Japan - Hokkaidō - Tokachi River] (in Japanese). Water Management and Land Conservation Bureau, Ministry of Land, Infrastructure, Transport and Tourism. Archived from the original on 10 February 2024. Retrieved 10 February 2024.