Town in Aargau canton, Switzerland, near Zürich, at an altitude of 388 m/1,273 ft; population (1990) 14,800. Its hot sulphur springs and mineral waters have been visited since Roman times.
The flag is modelled on the Stars and Stripes of the United States' flag. The stripes represent the nine provinces at the time of liberation. Blue and white are the colours of Argentina and also of national hero, José Gervasio Artigas. Effective date: 12 July 1830.