Canton of Schaffhausen
The Biber is a small river in the borderland between Germany and Switzerland. The source is located at Watterdingen in the municipality Tengen, district of Constance in Baden-Wuerttemberg. After about the Biber river flows into the Rhine at the Bibermühle (Biber Mill) west of Hemishofen in the Canton of Schaffhausen. The Biber is the largest tributary of the High Rhine on the stretch between Stein am Rhein and Schaffhausen.