Ruhr (river) 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 2,200 feet (670 m). It flows into the lower Rhine at an elevation of only 56 feet (17 m) in the municipal area of Duisburg. Its total length is , its average discharge is 79 m³/s (cubic metres per second) at Mülheim near its mouth. Thus, its discharge is, for example, comparable to that of the river Ems in
International Authority for the Ruhr International Authority for the Ruhr The International Authority for the Ruhr (IAR) was an international body established in 1949 by the Allied powers to control the coal and steel industry of the Ruhr Area in West Germany. Its seat had been in Düsseldorf. It was agreed at meetings in London on 20 April and 2 June 1949 by the United States of America, the United Kingdom, France and the Benelux countries. The London agreement was signed on 28 April of that year. It was abolished by the Treaty of Paris in 1951, which moved its activities to the European Coal