The Renaelva river flows into the Glomma

Glomma

The Glomma or Glåma is the longest and largest river in Norway. The long river has a drainage basin that covers a full 13% of Norway's area, all in the southern part of Norway.-Geography:...

 in Åmot

Åmot

Åmot is a municipality in Hedmark county, Norway. It is part of the traditional region of Østerdalen. The administrative centre of the municipality is the village of Rena...

 municipality

Municipalities of Norway

Norway is divided into 19 administrative regions, called counties , and 430 municipalities...

 in the county

Counties of Norway

Norway is divided into 19 administrative regions, called counties . The counties form the primary first-level subdivisions of Norway and are further divided into 430 municipalities...

 of Hedmark

Hedmark

is a county in Norway, bordering Sør-Trøndelag, Oppland and Akershus. The county administration is in Hamar.Hedmark makes up the northeastern part of Østlandet, the southeastern part of the country. It includes a long part of the borderline with Sweden, Dalarna County and Värmland County. The...

, Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

. One bridge that connect east and west side of the river, is Kjøllsæter Bridge

Kjøllsæter Bridge

Kjøllsæter Bridge is an 158 metres long wooden bridge that crosses the river Renaelva in Åmot, Hedmark in Norway. The bridge connecting two big military training areas for the Rena Camp, is build for tank guns and other heavy machines crossing it. It also gives the people living in Rød area a...

. A sideriver to Renaelva is Julussa

Julussa

Julussa is an 32 kilometer long river in Hedmark, Norway, starting at Bergesjøen 1043 feet The name Julussa comes from the old Norwegian word "ljudlausa" which means soundless. The reason for that given name is that the river flows so silent through the valley of Julussdalen...

 which is about 30 km long, coming from south, through the valley Julussdalen

Julussdalen

Julussdalen is a small valley in the municipalities of Elverum and Åmot, in the Norwegian county of Hedmark. There are scattered settlements in the valley, especially in the lower part of Elverum...

.

The Rena watershed

Drainage basin

A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

has a drainage area of 3,967 km².

A tunnel has been built to transport part of the water from the upper Glåma river into the Rena river in order to optimize the production of electricity by power plants.