The Breithorn is a mountain range of the Pennine Alps with its highest peak of the same name, located on the border between Switzerland and Italy. It lies on the main chain of the Alps, approximately halfway between the Matterhorn and Monte Rosa and east of the Theodul Pass. Most of the massif is glaciated and includes several subsidiary peaks, all located east of the main summit: the Central Breithorn, the western Breithorn Twin, the Gendarm and the Roccia Nera. The main summit is sometimes distinguished by the name Western Breithorn. The nearest settlements are Zermatt (Valais) and St-Jacques.
