Eisch near Septfontaines
|Main source||Near Sélange and Clemency|
49°44′57″N 6°06′31″E / 49.749218°N 6.1085915°ECoordinates: 49°44′57″N 6°06′31″E / 49.749218°N 6.1085915°E
|Basin size||172 km2 (66 sq mi)|
|Length||49.6 km (30.8 mi)|
It has several sources near the villages of Sélange (Belgium) and Clemency (Luxembourg).
The Luxembourgish part of the Eisch is informally known as the 'Valley of the Seven Castles', for the seven castles that line its route.
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