The Roer or Rur is a major river that flows through portions of Belgium, Germany and the Netherlands. It is a right (eastern) tributary to the Meuse. About 90 percent of the river's course is in Germany.
The Roer in Monschau
The Roer between Monschau and Dedenborn during winter
The Roer in the High Fens
The Roer near Hückelhoven.
The Meuse or Maas is a major European river, rising in France and flowing through Belgium and the Netherlands before draining into the North Sea from the Rhine–Meuse–Scheldt delta. It has a total length of 925 km.
The Meuse at Dinant
Auguste Paul Charles Anastasi, Bank of the Meuse at Zwindrecht (Holland), c. 1857, lithograph, Department of Image Collections, National Gallery of Art Library, Washington, DC
The Meuse seen from SPOT satellite. The village in the lower right of the photo is Bogny-sur-Meuse; the village in the upper left is Revin.
A view of the Meuse in the French Ardennes at Laifour