page_title: Ounasjoki
hierarchical_section_title: Ounasjoki
caption_attribution_description: English: Ounasjoki in wintertime in Sikkola, Kittilä, Finland Suomi: Talvinen Ounasjoki Kittilän Sikkolassa
context_page_description: The Ounasjoki River is the Kemijoki River's largest tributary and is Finland's longest single river tributary. It is also the largest river entirely within its borders. Ounasjoki is approximately 299.6 kilometres in length, and the catchment area is 13,968 square kilometres, 27 percent of the Kemi catchment area.
context_section_description: The Ounasjoki River (Northern Sami: Ovnnesjohka) is the Kemijoki River's largest tributary and is Finland's longest single river tributary. It is also the largest river entirely within its borders. Ounasjoki is approximately 299.6 kilometres (186.2 mi) in length, and the catchment area is 13,968 square kilometres (5,393 sq mi), 27 percent of the Kemi catchment area.
caption: Ounasjoki River in wintertime
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