The Trudlerbaach (Luxembourgish: Troudlerbaach) is a small brook that runs from Contern to Syren, within the communes of Weiler-la-tour and Contern in Luxembourg, it is tributary of the river Syre however actually flows from a higher point in the land than the Syre itself and therefore the source of it is disputedly the source of the Syre.Bulletin - Société Des Naturalistes Luxembourgeois, Issue 50, 1956. Google Books. A-Z.lu
The settlement of Trudlemillen sits on the river and was named after it, so is the nearby bus stop named Troudelermillen.
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