The Sauer (German, Luxembourgish) or Sûre (French) is a river in Belgium, Luxembourg and Germany. It is a left tributary of the river Moselle, and so it is part of the drainage basin of the Rhine river.
The Sauer at Weilerbach, forming the border between Luxembourg and Germany.
|Countries||Belgium, Luxembourg, Germany|
|- left||Wiltz, Our, Prüm|
|- right||Alzette, White Ernz, Black Ernz|
|Cities||Ettelbruck, Diekirch, Echternach|
|- location||Vaux-sur-Sûre, Belgium|
|- elevation||510 m (1,673 ft)|
|- location||Moselle, Luxembourg & Germany|
|- elevation||132 m (433 ft)|
|Length||173 km (107 mi)|
|Basin||4,240 km² (1,637 sq mi)|
|- average||40.5 m³/s (1,430 cu ft/s)|
|Wikimedia Commons: Sûre|
From there, the Sauer flows to the east and crosses the border between Belgium and Luxembourg near Martelange. It forms the border between Belgium and Luxembourg for 13 km (8 mi) north of Martelange. On their way through the mountainous north of Luxembourg (the Oesling), it passes through the Lac de la Haute Sure, an artificial lake to the west of Esch-sur-Sûre.
After flowing through Ettelbruck and Diekirch, the Sauer forms the border between Luxembourg and Germany for the last 50 km (31 mi) of its course, passing Echternach before joining, as left tributary, the Moselle in Wasserbillig, at about 132 m (433 ft) of altitude.
|Wikimedia Commons has media related to Sauer.|
- (in German, French, and Dutch) The Obersauer Nature Park