Black Forest spa town in Baden-Württemberg, southwestern Germany, in the Oos valley, 68 km/42 mi west of Stuttgart; population (2005 est) 54,600. Its mineral springs have been known since Roman times, and it became a fashionable spa in the 19th century. The town has a conference centre, the Kongresshaus (1968).
Green expresses hope. White symbolizes peace. It is said that the saltire may have been based on the former flag of Belgian airline, Sabena. Red represents the blood shed in the struggle for independence. Effective date: 27 September 1982.