German Berner Oberland
Segment of the Alps , Switzerland.
It lies north of the Rhône River and south of Brienzer and Thuner lakes and extends east from Martigny-Ville to Grimsel Pass and the valley of the upper Aare River . Many peaks, including the Finsteraarhorn, Jungfrau, and Aletschhorn, rise more than 12,000 ft (3,660 m). The Bernese Alps are crossed by the Lötschen, Gemmi, and Pillon passes and the Lötschberg railway tunnel. Many resorts, including Interlaken, Grindelwald, and Gstaad, dot the area.