AHR Ter

Ahr is a river in Germany, a left tributary of the Rhine. Its source is at an elevation of approximately 470 metres above sea level in Blankenheim in the Eifel, in the cellar of a timber-frame house near the castle of Blankenheim. After 18 kilometres it crosses from North Rhine-Westphalia into Rhineland-Palatinate.
  • Etymology: Old High German aha ("water")
  • Country: Germany
  • Mouth: Rhine
  • Length: 89 km (55 mi)
  • Basin size: 900 km² (350 sq mi)
  • Progression: Rhine→ North Sea
Data from: en.wikipedia.org