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Category 9: Folding and Faulting

Folding and Faulting
Thought rocks were boring? Think again! From zig zags and chevrons, to crumples and folds, to fault planes and melanges, these sites are some of the best places to see evidence of the power of geological forces in shaping our landscape.

Click on the links below to find out about each Geosite:

Glencoul mylonites


Sutherland, Scotland

The double fjords of Glencoul and Glendhu provide world-famous transects through the Moine Thrust Belt.

The Muidhe

The Muidhe

Lochaber, Highlands, Scotland

This site is located 4km west of Glenfinnan. The rocks here have been strongly deformed and some superb folding and pull-apart structures are clearly visible.

Millook Haven

Millook Haven

Cornwall, England

The coastal section through north Cornwall into Devon that runs to Bude and Hartland Point contains a spectacularly folded series of inter-bedded sandstones and shales originally deposited deeply under water.

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South Stack

South Stack Formation, Anglesey


The folds at South Stack are especially good for showing how smaller folds can form on the “backs” of larger ones – in a truly stunning display of structural geology.

Loch Monar Folding

Loch Monar Polyphase Folding

Inverness-shire, Scotland

Loch Monar - a playground for folding, especially polyphase folding. It was here in the 1950s that John Ramsay set up the protocols for describing these complex structures.


Folding at Broadhaven

Pembrokeshire, Wales

The cliff sections here – best visited at low-tide - are much used as a great and classic playground for looking at fold-thrust structures.


Outer Isles Fault and Pseudotachylytes

North Uist, Outer Hebrides, Scotland

The pseudotachylytes just outside Lochmaddy are amongst the most spectacular anywhere - presumed formed by ancient earthquakes on the Outer Isles Fault.


Cromer Glacio-tectonic folds

Norfolk, England

The cliff sections along the north Norfolk coast contain many spectacular examples of glacio-tectonic folds – especially near Cromer – although the state of these changes with the passage of each storm….

Kilve Beach


Somerset, England

The deformed Jurassic sedimentary rocks at Kilve have become justly famous for providing micro-examples of faults and associated folds.

Clashach Cove


Moray, Scotland

Clashach Cove, on the Moray coast, contains great outcrops of dune sandstones. These are fantastic outcrop analogues for conventional oil and gas reservoirs.

100 Great Geosites


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Exceptional Local Geology

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Stunning photo stops!

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