Sauer

For other uses, see Sauer (disambiguation).

Sauer/Sûre
The Upper Sûre Lake, a reservoir in the upper Sauer valley.
Origin	Near Vaux-sur-Sûre, Ardennes
Mouth	Between Oberbillig and Wasserbillig 49°42′48″N 6°30′24″E
Progression	Moselle—Rhine—North Sea
Basin countries	Luxembourg, Belgium, Germany, France
Length	173 km (107 mi)
Source elevation	510 m (1,670 ft)
Basin area	4,240 km2 (1,640 sq mi)
River system	Rhine
Left tributaries	Wiltz, Our, Prüm
Right tributaries	Alzette, White Ernz, Black Ernz

The Sauer (German, Luxembourgish) or Sûre (French) is a river in Belgium, Luxembourg and Germany. A left tributary of the river Moselle, its total length is 173 km.

Rising near Vaux-sur-Sûre in the Ardennes in southeastern Belgium, the Sauer flows eastwards and crosses the border with Luxembourg near Martelange. It forms the border between Belgium and Luxembourg for 13 km north of Martelange. West of Esch-sur-Sûre it flows into an artificial lake, the Upper Sûre Lake, which gives its (French) name to the Luxembourgian commune of Lac de la Haute-Sûre. After flowing through Ettelbruck and Diekirch, the Sauer forms the border between Luxembourg and Germany for the last 50 km of its course, passing Echternach before emptying into the Moselle in Wasserbillig. The rivers Wiltz, Alzette, White Ernz, Black Ernz, Our, and Prüm are tributaries.

External links

Media related to Sauer at Wikimedia Commons

• (German) (French) The Obersauer Nature Park