Switzerland offers a wealth of scenic variety over a small area: 220 km from north to south and 348 km from west to east. The characteristic landscapes of the Alps and the foothills take up 60 percent. A marked feature of the high Alps is the almost 1,800 glaciers. On account of its many rivers and more than 1,500 lakes, Switzerland is also called the "reservoir of Europe". The major European rivers (Rhine, Rhone, Ticino/Po, Inn/Danube) all have their source in Switzerland. However, the typically Swiss Alpine region is not the only area of offer scenic landscapes. The Jura and the Mittelland from Lake Geneva to Lake Constance are also oases of natural beauty to delight the senses.