What is "elsebach"

'''Elsebach ''' is a creek of North Rhine-Westphalia, Germany. The spring is near Reingsen, a constrict of Schwerte. Here Lollenbach and Reingser Bach merge to form the Elsebach. It empties into the Ruhr.

The open air bath "Elsebad" is named after the creek which was used in the past to provide water for the bath.