High Quality Content by WIKIPEDIA articles! Monte Rosa (Italian) or Mont Rose (French) is the highest mountain in Switzerland and the second-highest in both the Alps and western Europe. The main summit, known as the Dufourspitze (4,634 m (15,203 ft)), is the culminating point of the Pennine Alps. Although its main peak is located within Switzerland in the southeastern part of the canton of Valais, the Monte Rosa Massif is the second-highest massif in Italy.