The Glarus Alps are a mountain range in central Switzerland. They are bordered by the Uri Alps and the Schwyz Alps to the west, the Lepontine Alps to the south, the Appenzell Alps to the northeast. The eastern part of the Glarus Alps contains a major thrust fault that was declared a geologic UNESCO World Heritage Site.

The Uri Alps are a mountain range in Central Switzerland and part of the Western Alps. They extend into the cantons of Obwalden, Valais, Bern, Uri and Nidwalden and are bordered by the Bernese Alps and the Emmental Alps to the west, the Schwyzer Alps to the north, the Lepontine Alps to the south and the Glarus Alps to the east (Reuss).