Main image on top: River Berriedale and Morven (Credit: Axon / Alamy Stock Photo )

The imprint of glacial and post-glacial erosion on Caithness has often been slight and the gross form of the terrain was shaped in earlier times by weathering and fluvial processes operating under temperature to warm environments

Alain Godard (1965) recognised 4 main generations of relief in Caithness:

  • exhumed landsurfaces, formed before burial beneath Devonian sediments and now partially re-exposed by erosion
  • preglacial landsurfaces, comprising residual hills and Tertiary erosion surfaces, including the plain of Caithness itself
  • glacial landforms, products of erosion and deposition by former ice sheets
  • postglacial landforms cut in glacial deposits and including the extensive peatlands of The Flows.

These pages focus on the development of the relief before the Ice Age.

The broad, preglacial valley of the Berriedale Water, looking west towards the inselberg of Morven and its distinctive summit tors

Image by Alan Moar

Image: Berriedale Water / Credit: Mark Ferguson / Alamy Stock Photo

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