Ounasjoki

Native nameOvnnesjohka (Northern Sami)

CountryFinland

locationOunasjärvi, Enontekiö, Finland

elevation450 metres (1,480 ft)

Ounasjoki
Ounajoki above the rapids
Native name	Ovnnesjohka (Northern Sami)
Location
Country	Finland
Physical characteristics
Source
• location	Ounasjärvi, Enontekiö, Finland
• elevation	450 metres (1,480 ft)
Mouth
• location	Kemijoki, Rovaniemi, Finland
Length	299.6 km (186.2 mi)
Basin size	13,968 km2 (5,393 sq mi)

The Ounasjoki^[1] (Northern Sami: Ovnnesjohka) is the Kemijoki'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% of the Kemijoki catchment area.