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The '''Ruhr''' is a [[conurbation]] noted for heavy industrial production, situated in the western [[German]] state of [[Nord Rhein-Westfalen]]. Its industries include coal mining, iron and steel manufacture, and heavy engineering production. Major centres of the Ruhr include [[Bochum]], [[Dortmund]], [[Duisburg]], [[Essen]], and [[Gelsenkirchen]]. The conurbation has a population of 5.3 million.
The Ruhr was very heavily bombed during the [[Second World War]].
[[Category:German Cities and Towns]]