Belgium–France border

The Semois (; Simwès in Walloon, often under elided form Smwès; Semoy, Sesbach in German, Setzbaach in Luxembourgish of Arlon; and known as the Semoy in France) is a river flowing from the Ardennes uplands of Belgium and France towards the Meuse, of which it is a right tributary.

The Chiers (; ; ) is a river in Luxembourg, Belgium and France. It is a right tributary of the Meuse. The total length of the Chiers is approximately , of which in France.

international border

river in Belgium and France

mountain in Belgium