Blumberg is a municipality situated in the Schwarzwald-Baar region of Baden-Württemberg, Germany. One hundred ninety kilometers sout…Blumberg is a municipality situated in the Schwarzwald-Baar region of Baden-Württemberg, Germany. One hundred ninety kilometers 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.