Wihl Reservoir (Wiehltalsperre)
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Water type: Artificial lake
Basin: Wiehl River (Agger tributary) -> Agger River -> Sieg River -> Rhine -> Waal -> Upper Merwede (Boven Merwede) -> Lower Merwede (Beneden Merwede) -> Old Meuse (Oude Maas) -> Het Scheur -> Nieuwe Waterweg (New Waterway) -> North Sea
Continent:
Europe
Climate:
Continental
Country:
Germany