GelsenkirchenGelsenkirchen (UKˈɡɛlzənkɪərxən, USˌɡɛlzənˈkɪərxən, ˌɡɛlzn̩ˈkɪʁçn̩; Gelsenkiärken) is the 25th most populous city of Germany and the 11th most populous in the state of North Rhine-Westphalia with 262,528 (2016) inhabitants. On the Emscher River (a tributary of the Rhine), it lies at the centre of the Ruhr, the largest urban area of Germany, of which it is the fifth largest city after Dortmund, Essen, Duisburg and Bochum. The Ruhr is located in the Rhine-Ruhr Metropolitan Region, one of Europe's largest urban areas.
BochumBochum (ˈboʊxʊm , also US-əm , ˈboːxʊm; Baukem) is a city in North Rhine-Westphalia. With a population of 372,348 (April 2023), it is the sixth largest city (after Cologne, Düsseldorf, Dortmund, Essen and Duisburg) of the most populous German federal state of North Rhine-Westphalia and the 16th largest city of Germany. On the Ruhr Heights (Ruhrhöhen) hill chain, between the rivers Ruhr to the south and Emscher to the north (tributaries of the Rhine), it is the second largest city of Westphalia after Dortmund, and the fourth largest city of the Ruhr after Dortmund, Essen and Duisburg.
EssenEssen (ˈɛsn̩; Latin: Assindia) is the central and, after Dortmund, second-largest city of the Ruhr, the largest urban area in Germany. Its population of makes it the fourth-largest city of North Rhine-Westphalia after Cologne, Düsseldorf and Dortmund, as well as the ninth-largest city of Germany. Essen lies in the larger Rhine-Ruhr Metropolitan Region and is part of the cultural area of Rhineland. Because of its central location in the Ruhr, Essen is often regarded as the Ruhr's "secret capital".
DortmundDortmund (ˈdɔʁtmʊnt; Westphalian Düörpm ˈdyːœɐ̯pm̩; Tremonia) is the third-largest city in North Rhine-Westphalia, after Cologne and Düsseldorf, and the eighth-largest city in Germany. With a population of 609,000 inhabitants, it is the largest city (by area and population) of the Ruhr as well as the largest city of Westphalia. It lies on the Emscher and Ruhr rivers (tributaries of the Rhine) in the Rhine-Ruhr Metropolitan Region and is considered the administrative, commercial, and cultural centre of the eastern Ruhr.
RuhrThe Ruhr ('rʊər ; Ruhrgebiet ˈʁuːɐ̯ɡəˌbiːt, also Ruhrpott ˈʁuːɐ̯pɔt), also referred to as the Ruhr area, sometimes Ruhr district, Ruhr region, or Ruhr valley, is a polycentric urban area in North Rhine-Westphalia, Germany. With a population density of 2,800/km2 and a population of over 5 million (2017), it is the largest urban area in Germany. It consists of several large cities bordered by the rivers Ruhr to the south, Rhine to the west, and Lippe to the north. In the southwest it borders the Bergisches Land.
Ruhr (river)NOTOC The Ruhr is a river in western Germany (North Rhine-Westphalia), a right tributary (east-side) of the Rhine. The source of the Ruhr is near the town of Winterberg in the mountainous Sauerland region, at an elevation of approximately . It flows into the lower Rhine at an elevation of only in the municipal area of Duisburg. Its total length is , its average discharge is at Mülheim near its mouth. Thus, its discharge is, for example, comparable to that of the river Ems in Northern Germany or the River Thames in the United Kingdom.
