What is a mountain range with jagged peaks called?

A mountain range with jagged peaks is called a sawtooth mountain range. Sawtooth mountains are characterized by sharp, pointed peaks that resemble the teeth of a saw. These mountains are typically formed by the erosion of glaciers or rivers, which cut deep, narrow valleys between the peaks. Sawtooth mountains are found in many parts of the world, including the Alps, the Rockies, and the Andes.