Roer

Roer
Rur
The Roer in Monschau
Location
Countries
Physical characteristics
Source 
  locationHigh Fens
  elevation660 m (2,170 ft)
Mouth 
  location
Meuse
  coordinates
51°11′52″N 5°58′52″E / 51.19778°N 5.98111°E / 51.19778; 5.98111
  elevation
17 m (56 ft)
Length164.5 km (102.2 mi)
Basin size2,361 km2 (912 sq mi)
Basin features
ProgressionMeuseNorth Sea

The Roer (Dutch: [ruːr] , Limburgish: [ʀuːʀ˦]) or Rur (German: [ʁuːɐ̯] ; French: Rour [ʁuʁ]) is a major river that flows through portions of Belgium, Germany and the Netherlands. It is a right (eastern) tributary to the Meuse (Dutch: Maas). About 90 percent of the river's course is in Germany.

It is not to be confused with the rivers Ruhr and Röhr, which are tributaries of the Rhine in North Rhine-Westphalia.