The Jeker (Dutch, in French: Geer)'s a river in Belgium and the Netherlands. It's a left tributary to the river Meuse. The source of the Jeker's near the village Geer in the Belgian province Liège. Most of its course's in Belgium (provinces Liège and Limburg), except the final approx. 5 km in the Netherlands (province Limburg). The Jeker flows into the river Meuse, in the city Maastricht. Cities along the Jeker are Waremme, Tongeren, Kanne, (all three in Belgium) and Maastricht (Nether… (More on Jeker)