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
Mannheim Harbour Mannheim Harbour Mannheim Harbour, named "Rhein-Neckar-Hafen Mannheim", is a river port on the Rhine in Mannheim, at the confluence of the Rhine and the Neckar in Baden-Wurttemberg. It consists out of 4 main harbour areas "Handelshafen", "Rheinauhafen", "Altrheinhafen" and "Industriehafen", which are divided into 14 single harbour basins and 3 river docks. It is one of the most important inland ports in Europe. The port covers 3.42 km² of water (2.83 km² Rhine, 0.59 km² Neckar) and 8.635 km² of dockland. The total land area covered from the harbour is about 11.31 km² and it is the biggest inland port