Soestbach

The Soestbach is a 13 km long stream in the lowlands and a left tributary of the Ahse. It flows in the Soester Börde in the town of Soest and the municipality of Welver, where it flows into the Ahse near Berwicke.
The Soestbach is one of the numerous bodies of water that rise on the northern edge of the Haar and flow through the Hellwegbörden. The Soestbach is the main body of water of the Soest Börde. It rises south of Soest's old town and has different names in the city area. In its upper reaches, the Soestbach is partly piped; since the 1990s, however, small parts of the stream have been renaturalized, and larger parts have been uncovered again. At the lower end of the street Am Loerbach, the outflow of the Great Pond flows into the Soestbach, known here as Loerbach. The name Loerbach is derived from the Soest tanners, who lived in simple, small craft houses directly on the stream in the Middle Ages. Archaeologists have found several skull and bone remains on and in the Soestbach, as the butchers delivered the skins with skull and feet to the tanners.

Wikipedia