In length rising near Arlon in Belgium, and flowing into the Meuse near Montherme in France.
Its capital is Arlon, which lies near the borders of the grand-duchy.
ARLON, the chief town of the Belgian province of Luxemburg, situated on a hill about 1240 ft.
Nowadays the woods have disappeared, and Arlon is chiefly notable for the extensive views obtainable from the church of St Donat which crowns the peak.
Arlon is no longer fortified.
In the middle ages Arlon was the seat of a powerful countship (later marquisate), held after 1235 by the dukes of Luxemburg.