Semois

The fourth one in Top 10 Longest Rivers in Belgium that Toplist wants to introduce to you is Semois. The Semois is a river that flows from the Ardennes uplands of Belgium and France to the Meuse. The Semois originates in Arlon, Wallonia, in the Belgian province of Luxembourg, near the Grand Duchy of Luxembourg. It flows roughly westward and enters France after passing through the Belgian village of Bohan-sur-Semois, forming about 2 kilometers (1.2 miles) of the Belgian–French border. In Monthermé, it joins the Meuse 24 kilometers (15 miles) downstream. The river's total length is 210 kilometers (130 mi).

Chiny, Florenville, Herbeumont, Bouillon (including the towns of Dohan and Poupehan), and Vresse-sur-Semois are also on the Semois's banks (all in Belgium).

The name SESMARA first appears in writing in the 2nd century AD. That was before the region was heavily influenced by Germanic immigration. Sesomirs (664), Sesmarus (950), Sesmoys (1104), and Semoir are medieval forms (1244).

A type of tobacco grown in the area bears the river's name.

Length: 210 km (130 mi- shared with France)