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Lenne

River in Germany

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Lenne
The Lenne in Iserlohn-Letmathe.
Location
Country	Germany
Physical characteristics

Source
• location	Sauerland
• elevation	819 m (2,687 ft)

Mouth
• location	Ruhr
• coordinates	51°24′54″N 7°29′31″E / 51.41500°N 7.49194°E / 51.41500; 7.49194
Length	129.0 km (80.2 mi) ^[1]
Basin size	1,355 km² (523 sq mi) ^[1]

Discharge
• average	25 m³/s (880 cu ft/s)

Basin features
Progression	Ruhr→ Rhine→ North Sea
Tributaries
• left	Else (Lenne), Bigge (river), Elspe (Lenne), Grafschaft (Lenne), Uentrop (Lenne)
• right	Nesselbach (Lenne), Nette (Lenne), Sorpe (Lenne)

The Lenne is a tributary of the river Ruhr in the Sauerland hills, western Germany. It has caused flooding in recent years.^[2]

Having its source on top of the Kahler Asten near Winterberg in an intermittent spring at an elevation of 2,687 ft (819 m), the Lenne ends after a course of 129 km flowing into the Ruhr river near the city of Hagen. With an average discharge of 25 m³/s near its mouth, it is the main tributary of the Ruhr. ^{[citation needed]}

References

^ ^a ^b Hydrographic Directory of the NRW State Office for Nature, the Environment and Consumer Protection (Gewässerverzeichnis des Landesamtes für Natur, Umwelt und Verbraucherschutz NRW 2010) (xls; 4.67 MB)
^ Gôppert, H.; Ihringer, J.; Plate, E. J.; Morgenschweis, G. (April 1998). "Flood forecast model for improved reservoir management in the Lenne River catchment, Germany". Hydrological Sciences. 43 (2): 215. CiteSeerX 10.1.1.408.1817. doi:10.1080/02626669809492119.