What is a tor in geographical terms?

A tor is a prominent, isolated rock outcrop or stack, often formed from granite or other types of hard rock. Tors typically rise sharply from the surrounding landscape and can be found in moorland or upland areas. Their formation is the result of processes such as weathering and erosion, which shape the rock into distinct pinnacles. The unique geological characteristics and visual prominence of tors make them an important feature in certain landscapes, often serving as points of interest in geographical studies. They provide insights into the geological history of an area and can also influence local ecosystems.

The other terms describe different geological features: a flat area of land refers to plains, a deep valley is typically called a gorge or canyon, and a type of glacier involves large masses of ice, each serving distinct roles in the Earth's surface processes.