The Rena or Renaelva is a river in Innlandet county, Norway. The 165-kilometre (103 mi) long river runs through Rendalen and Åmot municipalities in Innlandet county. This river is a tributary of the large river Glomma. Kjøllsæter Bridge connects the east and west side of the river. The 30-kilometre (19 mi) river Julussa flows from south through the Julussdalen valley and into the river Rena.
|Renaelva / Rena|
|Source||Confluence of the rivers Tysla and Unsetåa|
|• location||Rendalen, Innlandet|
|• elevation||265 metres (869 ft)|
|Mouth||Confluence with Glomma river|
|185 metres (607 ft)|
|Length||165 km (103 mi)|
|Basin size||3,967 km2 (1,532 sq mi)|
The Rena watershed has a drainage area of 3,967 square kilometres (1,532 sq mi). The river begins at the confluence of the rivers Tysla and Unsetåa which is just south of the Fonnåsfjellet mountain and just north of the village of Bergset. The river flows south through the lakes Lomnessjøen and Storsjøen and when the river reaches the village of Rena, just flows into the large river Glomma.