The Swalm (known as the Schwalm in German) is a small but ecologically rich river flowing through both Germany and the Netherlands, ultimately joining the Meuse near the town of Swalmen. Originating near Wegberg in the Heinsberg district of North Rhine-Westphalia at an elevation of approximately 85 meters, the river travels a total length of 45 kilometers before reaching its mouth. Its catchment area spans roughly 269 square kilometers, with about 27 square kilometers lying within the Netherlands. Despite its modest size, the Swalm supports a surprisingly diverse range of wildlife and offers genuine angling opportunities in a scenic, naturalistic setting characterized by carr woodland, heath, and bog habitats along its banks.