Geography of Switzerland rolling hills and plains of the plateau. The smaller Jura Mountains are located on the north west side of the plateau. Much of the northern border with Germany follows the Rhine, though the Rhine enters Switzerland near Schaffhausen. The eastern border with Germany and a portion of Austria is drawn through Lake Constance (). A portion of the southwest border with France is drawn through Lake Geneva. Switzerland is divided into 26 sovereign cantons. The cantons along the Swiss Plateau tend to be the most populous, industrial and religiously Protestant. The cantons in the Alps tend to be less populous,
Cantons of Switzerland in the formation of Switzerland as a federal state in 1848. The cantons retained far-reaching sovereignty, but were no longer allowed to maintain individual standing armies or international relations. As the revolutions of 1848 in Western Europe had failed elsewhere, Switzerland during the later 19th century (and with the exception of the French Third Republic, until the end of World War I) found itself as an isolated democratic republic, surrounded by the restored monarchies of France, Italy, Austria-Hungary and Germany. The Swiss Federal Constitution declares the cantons to be sovereign to the extent that their sovereignty is not limited by