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Ahr

River in Germany
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... Wikipedia
Source: Eifel
Length: 55 mi
Discharge: 314.3 ft³/s
Basin size: 900 km2 (350 sq mi)
Etymology: Old High German aha ("water")