Switzerland the main source and outflow of Lake Geneva. Lake Constance is the second largest Swiss lake and, like the Lake Geneva, an intermediate step by the Rhine at the border to Austria and Germany. While the Rhône flows into the Mediterranean Sea at the French Camargue region and the Rhine flows into the North Sea at Rotterdam in the Netherlands, about apart, both springs are only about apart from each other in the Swiss Alps. 48 of Switzerland's mountains are above sea in altitude or higher. At , Monte Rosa is the highest, although the Matterhorn () is often regarded
Geography of the Alps Dauphiné Alps in France to the Hohe Tauern in central Austria, and the main ascent routes on many of the highest mountains pass over glaciers. Very few large lakes are found within the body of the Alps, but a number are situated around the edge, particularly in areas formerly covered by glacier tongues. These include Lake Geneva on the northern side of the alps, on the French/Swiss border, Lago Maggiore, Lake Como and Lake Garda on the southern side of the Alps in Italy, and the lakes of Switzerland, southern Germany and the Austrian Salzkammergut in the north. The main