The Ems (German: Ems; Dutch: Eems) is a river in northwestern Germany and the northeastern Netherlands. It runs through the states of North Rhine-Westphalia and Lower Saxony, and discharges into the Wadden Sea. Its total length is 371 km. The state border between the Lower Saxon area of East Friesland (Germany) and the province of Groningen (Netherlands), whose exact course is the subject of a border dispute between Germany and the Netherlands, runs through the Ems estuary.
The source of the river is in the southern Teutoburg Forest in North Rhine-Westphalia. In Lower Saxony the brook becomes a comparatively large river. Here the swampy region of Emsland is named after the river. In Meppen the Ems is joined by its largest tributary, the Hase River. It then flows northwards, close to the Dutch border, into East Frisia. Near Emden it flows into the Dutch Dollard bay (a national park) and then continues as a tidal river towards the Dutch city of Delfzijl.
Between Emden and Delfzijl, the…