Zenne
The Zenne (Dutch) or Senne (French) is a small river that flows through Brussels, left tributary of the Dijle/Dyle. Its spring is in the village of Naast near the municipality of Soignies. It is an indirect tributary of the Scheldt, through the Dijle and the Rupel. The Woluwe is one of the tributaries of the Zenne.
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