University of Central Florida (UCF) GEO1200 Physical Geography Practice Exam

A large bowl-like depression in a mountain is called a cirque. This geological feature is typically formed by the processes of glacial erosion, where a glacier erodes the surrounding rock, creating a steep-walled basin. Cirques are commonly found in high mountain regions and often serve as the starting points for glaciers.

The curvature of the cirque's walls and its bowl-like shape result from the combined effects of glacial ice scraping the surface and the freeze-thaw weathering of the rock. This makes cirques distinct from other landforms such as valleys or canyons, which have different shapes and formation processes. In contrast, a crater is associated with volcanic activity and results from explosive eruptions, while a valley is characterized by being a lower area between hills or mountains, and a canyon refers to a deep, narrow valley often carved by river erosion. Understanding the distinct characteristics of these landforms helps clarify why a cirque is specifically defined as a bowl-like depression in a mountainous region.