The Geleenbeek is a 44.7-kilometer (27.8-mile) river flowing through the province of Limburg in the Netherlands. Rising near Benzenrade, a hamlet in the municipality of Heerlen, the stream travels generally northwest through Nuth, Schinnen, and Spaubeek before turning north at Geleen, passing through the centre of Sittard, and continuing north through Nieuwstadt until it joins a branch of the Meuse at Stevensweert. Its Latin name, "Glana," translates to "bright brook" — a fitting description for a stream fed by calcareous seepage water flowing through a designated Natura 2000 valley. Ongoing restoration efforts have been steadily improving the ecological character of the Geleenbeek, making it an increasingly interesting destination for anglers exploring the streams of South Limburg.