|Native name||kölisälva, Kalix älv|
|Mouth||Gulf of Bothnia|
|0 m (0 ft)|
|Length||450 km (280 mi)|
|Basin size||18,130.1 km2 (7,000.1 sq mi)|
|⁃ average||290 m3/s (10,000 cu ft/s)|
The Kalix River (in Kalix dialect: kölisälva, Swedish: proper Kalix älv or in everyday language Kalixälven, Northern Sami: Gáláseatnu, In Meänkieli the lower part of the river is called Kaihnuunväylä, while the upper part is called Kaalasväylä) is one of the four major rivers of Norrland, northern Sweden, that are untouched by water power constructions. It is 461 kilometres long, flowing up to the Kebnekaise mountain range in Kiruna Municipality. In the southeast it flows through Lappland; and to the south through Norrbotten County, discharging in the Gulf of Bothnia south-east of Kalix.
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