Demer
River in eastern Belgium

The Demer is an 85-kilometre (53 mi) long river in eastern Belgium, and a right tributary of the Dijle. It flows through the Belgian provinces Limburg and Flemish Brabant. Its source is near Tongeren. It flows into the river Dijle in Werchter, Rotselaar municipality.
The most important towns along the Demer are (starting from the source) Bilzen, Hasselt, Diest and Aarschot. Tributaries of the Demer are the rivers Herk, Gete and Velp (all three in Halen).
The name "Demer" comes from the Celtic language words "tam" (dark coloured) and "ara" (water) giving rise to a name meaning "dark coloured river". The Winter brook (Beringen) is a tributary of the Demer River.

Sources and credits
This article is adapted from the Wikipedia article “Demer”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Demer.jpg by Paul Hermans at Dutch Wikipedia, CC BY-SA 3.0
- Demerplus.jpg by Willy Leenders, Public domain
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