Contents

Tokachi River

You can help expand this article with text translated from the corresponding article in Japanese. (April 2022) Click [show] for important translation instructions. View a machine-translated version of the Japanese article. Machine translation, like DeepLorGoogle Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Japanese Wikipedia article at [[:ja:十勝川]]; see its history for attribution. You may also add the template {{Translated|ja|十勝川}} to the talk page. For more guidance, see Wikipedia:Translation.

River in Hokkaidō, Japan

Tokachi River Tokachi-gawa, Tokapci
Iwamatsu DaminShimizu (September 2007)
Native name	十勝川 (Japanese) トカㇷ゚チ (Ainu)
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″N 143°39′58″E / 42.6950°N 143.6661°E / 42.6950; 143.6661
• elevation	0 m (0 ft)
Length	156 km (97 mi)[1]
Basin size	9,010 km2 (3,480 sq mi)[1]
Discharge
• average	71 m3/s (2,500 cu ft/s)
Basin features
Population	340,000[1]

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

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:

• tokap-usi ("breast, somewhere")
• toka-o-pci ("swamp, around a place, either")

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