Sambre
Overview
 
The Sambre is a river
River
A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 in northern France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 and Wallonia, southern Belgium
Belgium
Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

, left tributary of the Meuse River
Meuse River
The Maas or Meuse is a major European river, rising in France and flowing through Belgium and the Netherlands before draining into the North Sea...

. The ancient Romans called the river Sabis.
The source of the Sambre is near Le Nouvion-en-Thiérache
Le Nouvion-en-Thiérache
Le Nouvion-en-Thiérache is a commune in the Aisne department in Picardy in northern France.-Population:-References:*...

, in the Aisne
Aisne
Aisne is a department in the northern part of France named after the Aisne River.- History :Aisne is one of the original 83 departments created during the French Revolution on 4 March 1790. It was created from parts of the former provinces of Île-de-France, Picardie, and Champagne.Most of the old...

 department. It passes through the Franco-Belgian coal basin, formerly an important industrial district. Its Belgian portion was at the western end of the sillon industriel
Sillon industriel
The sillon industriel is the former industrial backbone of Wallonia and thus of Belgium. It runs across Wallonia, passing from Dour, in Borinage, in the west, to Verviers in the east, through Mons, La Louvière, Charleroi, Namur, Huy, and Liège, following the valleys of the rivers Haine, Sambre,...

, which was Wallonia's industrial backbone.
It is canalized along much of its length and flows into the Meuse River
Meuse River
The Maas or Meuse is a major European river, rising in France and flowing through Belgium and the Netherlands before draining into the North Sea...

 at Namur
Namur (city)
Namur is a city and municipality in Wallonia, in southern Belgium. It is both the capital of the province of Namur and of Wallonia....

, Belgium.
 
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