Rottnan

Rottnan (Swedish) or Rotna (Norwegian)^[3] is a 110-kilometre (68 mi) long river in Norway and Sweden. The river starts south of the Hof Finnskog Church in Solør, Norway and discharges into lake Mellan-Fryken at Rottneros in Värmland, Sweden. The main river begins at the Rundtjern, but that lake is fed by several streams and small lakes on and surrounding the Evensbergklinten and Husuberget mountains. The highest source is the small lake Helveteskjelda, at an elevation of 520 metres (1,710 ft) above sea level. The river passes through the municipalities of Åsnes and Grue in Innlandet county, Norway and through the municipalities of Torsby and Sunne in Värmland County, Sweden.^[4]

Rottnan (Swedish) Rotna (Norwegian)
River Rotna in Svullrya, Norway
Interactive map of the lake
Location
Countries	Norway, Sweden
Counties	Innlandet, Värmland
Municipalities	Åsnes, Grue, Torsby, Sunne
Physical characteristics
Source	Lake Helveteskjelda
• location	Åsnes, Norway
• coordinates	60.55034°N 12.4229°E / 60.55034; 12.4229
• elevation	520 metres (1,710 ft)
Mouth	Lake Mellan-Fryken
• location	Rottneros, Sweden
• coordinates	59.793310°N 13.129954°E / 59.793310; 13.129954
• elevation	62 metres (203 ft)
Length	110 km (68 mi)[1]
Basin size	960 km2 (370 sq mi)[1]
Discharge
• average	12.9 m3/s (460 cu ft/s)[2]
• maximum	63 m3/s (2,200 cu ft/s)[2]

Rottnan used to have three waterfalls close to the mouth in Fryken. Rottnafallet was the last and tallest at 26 metres (85 ft) height. The waterfalls were built in 1927 for hydroelectric power. The name Rottnan comes from the old Swedish word Rotn which means "the roaring".

• 
  The waterfall Skarpedsfallet in Rottneros, Sweden
• 
  The waterfall Rottnafallet and the pulp mill Rottneros bruk in Rottneros, Sweden

See also

• List of rivers in Norway