A massif is a principal mountain mass, such as a compact portion of a range that is distinct from other peaks:

A massif is a compact, distinct mountain mass within a range, like the Mont Blanc Massif in the Alps. Studying massifs highlights their geological importance, the challenges of studying rugged terrains, and their role in tourism and ecology. It also offers insights into how geological features shape landscapes, providing lessons on the need for conservation and sustainable tourism to preserve unique mountain ecosystems and support regional economies.