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
S7 (Rhine-Ruhr S-Bahn) S7 (Rhine-Ruhr S-Bahn) Line S 7 is an S-Bahn line on the Rhine-Ruhr network in the German state of North Rhine-Westphalia, which has been operated by Abellio from Wuppertal Hauptbahnhof to Solingen Hauptbahnhof since 15 December 2013. It is operated at 20 minute intervals, using LINT 41 vehicles. The service was previously classified as Regionalbahn service RB 47, known as the "Der Müngstener", a reference to the Müngsten Bridge, which it crosses and DB Regio had operated it on the same route with class 628 diesel multiple units since 1994. It was also operated at 20-minute intervals, in the evenings