Blumberg is a municipality situated in the Schwarzwald-Baar region of Baden-Württemberg, Germany. Nineteen kilometres south of Donaue…Blumberg is a municipality situated in the Schwarzwald-Baar region of Baden-Württemberg, Germany. Nineteen kilometres south of Donaueschingen, it lies between the southern edge of the Schwarzwald, the Black Forest, the border with Switzerland’s Canton of Schaffhausen, and Lake Constance.