A remarkable protalus rampart complex in Wester Ross

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Abstract
A massive pile of rock debris, much of it composed of blocks 1‐5m long, accumulated in the Lateglacial at the foot of a snow bed in Wester Ross. The accumulation is a kilometre long and up to 55m high and the volume of debris in it is c. 600,000 m3. It implies that the bedrock faces that supplied it retreated some 17m in about 750 years. Certain aspects of the debris mass permit climatic inferences: they suggest that snow‐bearing winds from the south‐east were important and that a cool, very cloudy climate was succeeded by a very cold climate with less cloud.

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