Ruhr (river)

Ruhr
The Ruhr in Essen-Kettwig
Location
CountryGermany
StateNorth Rhine-Westphalia
Physical characteristics
Source 
  locationKahler Asten
  elevation870 m (2,850 ft)
Mouth 
  location
Rhine
  coordinates
51°27′3″N 6°43′22″E / 51.45083°N 6.72278°E / 51.45083; 6.72278
Length219.2 km (136.2 mi)
Basin size4,485 km2 (1,732 sq mi)
Discharge 
  average79 m3/s (2,800 cu ft/s)
Basin features
ProgressionRhineNorth Sea
Tributaries 
  leftLenne, Volme
  rightMöhne

The Ruhr (German pronunciation: [ʁuːɐ̯] ) is a river in western Germany (North Rhine-Westphalia), a right tributary (east-side) of the Rhine.