| Alzette | |
|---|---|
At the Pétrusse mouth, Luxembourg City |
|
| Origin | Thil |
| Mouth | Ettelbruck |
| Progression | Sauer—Moselle—Rhine—North Sea |
| Basin countries | France, Belgium, Luxembourg |
| Length | 73 km (45 mi) |
| Source elevation | 305 m (1,001 ft) |
| River system | Rhine |
| Left tributaries | Mess, Pétrusse, Eisch, Attert, Wark |
The Alzette (Luxembourgish: Uelzecht, German: Alzig) is a river with a length of 73 kilometers in France and Luxembourg. It is a right tributary of the Sauer.
It rises in Thil near the town Villerupt in the Meurthe-et-Moselle département, France. It crosses the border with Luxembourg after a few kilometres. In Lameschmillen (near Bergem) it is joined by the Mess. It flows through the Luxembourgish towns Esch-sur-Alzette, Luxembourg City and Mersch, and empties into the Sauer near Ettelbruck.
The Sauer is a tributary to the Moselle.