Lesse

For the town in France, see Lesse, Moselle.

The Lesse is a river in the Ardennes, in the Walloon region of Belgium. It is a right tributary to the river Meuse.

Lesse
The Lesse in Han-sur-Lesse.
Location
Country	Belgium
Physical characteristics
Source
• location	Ardennes
• elevation	480 m (1,570 ft)
Mouth
• location	Meuse
Length	89 km (55 mi)
Basin features
Progression	Meuse→ North Sea

The Lesse and its tributary the Lomme in Belgium

The source of the Lesse is near Libramont-Chevigny, in the Belgian province of Luxembourg. The Lesse flows roughly in north-western direction. It is only 49 miles (79 km) long, but its meandering course may be judged by the fact that it is no more than 29 miles (47 km) from its source to Anseremme in a straight line. It has 13 tributaries in its short course.^[1]

Near Han-sur-Lesse (municipality of Rochefort) the entire river goes underground, flowing through limestone caves. Many of the caves along the banks of the Lesse are important archaeological sites; these include the Trou de Chaleux (by the Cirque de Chaleux), and the Trou des Nutons and Trou du Frontal at Furfooz.^{[citation needed]}

The Lesse flows into the river Meuse in the village of Anseremme, municipality of Dinant. Towns along the Lesse are Daverdisse, Han-sur-Lesse, Houyet and Anseremme.