The Jeker (also known as the Geer in French) is a modest but charming river flowing through both Belgium and the Netherlands, stretching approximately 54 kilometres in total length. Rising near the village of Geer in the Belgian province of Liège, the river winds through the towns of Waremme, Tongeren, and Kanne before crossing into the Netherlands, where its final roughly 4 kilometres pass through the city of Maastricht before emptying into the Meuse as a left-bank tributary. This short Dutch stretch, nestled within the province of Limburg, offers an intimate urban and peri-urban fishing experience set against the historic backdrop of Maastricht, one of the oldest cities in the Netherlands. The river's journey through limestone-rich Hesbaye and Haspengouw landscapes gives it a character shaped by agricultural plains and gentle valley terrain, making it a quiet alternative to the larger Meuse that it ultimately feeds.