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/Switzerland, and the lakes of Switzerland, southern Germany and the Austrian Salzkammergut in the north. Rivers The main drainage basins of the Alps are those of the Rhine, the Rhone, the Danube and the Po. These have as main tributaries: Rhine: Aare, Reuss, posterior Rhine; Rhone: Durance, Drôme, Isère; Danube: Sava, Drava, Mur, Enns, Inn; Po: Oglio, Adda, Ticino, Dora Baltea. Other important rivers draining the Alps include the Var, Adige and Piave. The triple watershed Rhine-Rhone-Po is south of Furka Pass near the summit of the Witenwasserenstock, at ; the triple watershed Rhine-Po-Danube is at Lunghin Pass, Grisons (, 2645 m); the triple watershed Po-Danube-Adige is at the Swiss-Italian border, near the summit of Monte Forcola south of Val Müstair, at . See also List of national parks in the Alps High Alps References Alps Climate of the Alps Physiographic provinces Physiographic sections