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GCSE Geography · key term
A narrow, steep-sided ridge formed between glacially eroded hollows or valleys.
Used by AQA and Edexcel
Specification 3.1.3.4 · Paper 1
A narrow, sharp ridge formed by glacial erosion on either side.
Revise: Glacial Processes and Landforms of ErosionThe result is an arête: a sharp, knife-edge ridge. Striding Edge in the Lake District is an example.
Specification 1.12, 1.14 · Paper 1
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A narrow, steep-sided ridge left between neighbouring corries or glaciated valleys.
An arête forms where neighbouring corries erode back towards each other. As their back walls retreat, the rock between them becomes narrower, leaving a sharp, steep-sided ridge. Striding Edge on Helvellyn is an example.