The river rises in the Langres Plateau France and flows north past Sedan (the head of navigation) and Charleville-Mézières into Belgium. It is joined by the Sambre river at Namur. From Namur the Meuse winds eastward skirting the Ardennes, passes Liège, and turns north. Then it forms part of the Belgian-Dutch border, except that at Maastricht the border is more westward. Inside the Netherlands it continues north along Venlo, then turns westward.
In the Netherlands, it merges with the Rhine into an extensive delta, eventually flowing into the North Sea via the Nieuwe Waterweg and the Hollands Diep.
The Maas (in French Meuse) rises on the Langres plateau in France at a height of 456m/1,496ft above sea level and flows through French territory for 450km/280mi and through Belgium for 192km/119mi before reaching the Netherlands.
Plans were developed from an early stage for improving the navigability of the Maas throughout the year.
Various bends were straightened and considerable stretches of the river were canalized.