Clach Tholl
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Condition (NatureScot)
| Unit | Feature | Condition | Area (ha) | Assessed |
|---|---|---|---|---|
| F1 | Quaternary of Scotland | Favourable | — | 2009-06-02 |
Climate exposure
This is about exposure to a nationwide pressure this habitat type carries — not a verdict on this site's own management.
Coastal habitats are exposed to sea-level rise and storm erosion. Where hard sea defences sit behind them, there's nowhere landward to retreat to — a squeeze that keeps compressing the habitat no matter how well it's managed.
Geology & landscape
Geological Period: Quaternary
Landscape processes: Coastal, Glacial
Description
CLACH THOLL Geological: Quaternary geology and geomorphology: Quaternary of Scotland DESCRIPTION: Clach Tholl, situated 1 km to the south of the village of Port Appin, forms a small headland in the Lynn of Lorn. Clach Tholl is notable for landforms formed during the Quaternary which illustrate former changes in the level of the sea relative to the land. It illustrates a particularly good example of a raised natural arch associated with the Main Rock Platform of western Scotland, a feature formed by marine erosion during the Devensian Late glacial (towards the end of the last glacial period).