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Stack - GCSE Geography Definition

Reviewed by: Bridgette Barrett

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In GCSE Geography, a "stack" is a tall, isolated pillar of rock found along coastlines. It is formed when waves erode the base of a headland, creating a cave. Over time, the cave becomes larger until an arch is formed. The roof of the arch eventually collapses, forming a free-standing column separate from the mainland. Stacks are later eroded by the wind and waves, eventually turning into stumps. An example of a stack is the famous Old Harry Rocks along the Dorset coast. Stacks show us how powerful natural forces, like the sea and weather, shape our landscapes over time.

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Bridgette Barrett

Reviewer: Bridgette Barrett

Expertise: Geography, History, Religious Studies & Environmental Studies Subject Lead

After graduating with a degree in Geography, Bridgette completed a PGCE over 30 years ago. She later gained an MA Learning, Technology and Education from the University of Nottingham focussing on online learning. At a time when the study of geography has never been more important, Bridgette is passionate about creating content which supports students in achieving their potential in geography and builds their confidence.

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