The Lenne in Iserlohn-Letmathe.
819 m (2,687 ft)
51°24′54″N 7°29′31″E / 51.41500°N 7.49194°ECoordinates: 51°24′54″N 7°29′31″E / 51.41500°N 7.49194°E
|Basin size||1,353 km2 (522 sq mi)|
|Length||128 km (80 mi)|
The Lenne River is a tributary of the Ruhr River, and has caused flooding in recent years.
Having its source on top of the Kahler Asten near Winterberg in an intermittent spring at an elevation of 2,687 feet, the Lenne ends after a course of 128 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.
- 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—Journal—des Sciences Hydrologiques. Pub. 43 (2): 215. CiteSeerX 10.1.1.408.1817. doi:10.1080/02626669809492119.
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