The Düsseldorf-Derendorf–Dortmund Süd railway is a partially closed line in the German state of North Rhine-Westphalia from Düsseldorf-Derendorf station (formerly Düsseldorf RhE station) to (formerly Dortmund RhE station). Parts of it are still busy, including two sections used for the Rhine-Ruhr S-Bahn. Regionally, it is also called the Wuppertaler Nordbahn (Wuppertal Northern Railway), Düsseltalbahn (Düsseldorf Valley railway) or simply the Rheinische Strecke (Rhenish line).