The Sieg near Windeck
|Source elevation||603 m|
|Avg. discharge||52 m³/s|
|Basin area||2,832 km²|
|This article does not cite any references or sources. (December 2008)|
The source is located in the Rothaargebirge mountains. From here the river runs southwestwards to the city of Siegen and the hills of Siegerland, both named after the river. Further west the Sieg valley forms the boundary of the Bergisches Land (northern) and Westerwald (southern). The river finally runs through a protected area east of the city of Bonn.
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