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Cerrig Duon

Named rock
Cerrig Duon
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What is recorded here

Cerrig Duon is a sea cliff or coastal rock feature composed of Silurian volcanic and sedimentary rocks, formed around 440 to 420 million years ago. It is notable for its exposure of ancient volcanic activity and sedimentation in the Welsh Basin, contributing to the geological diversity of North Wales.

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Photo: Ceri Thomas · CC BY-SA 2.0