The Coigach Geotrail


Discover the oldest rocks in Britain, fossils of early life and evidence of a massive asteroid impact. Learn about Coigach’s journey across the planet in the last 3 billion years and how it has been shaped in deserts, floods and under ice.

Our leaflet is a guide to this amazing story and will be available here as a free download or in printed form for purchase locally from 18th April 2018. By purchasing a printed copy you will be supporting this and other local projects aimed at enhancing your visit to the area.

The trail takes you on a series of geological excursions around the peninsula and visits spectacular coastline, beaches and hills with commanding views of the Summer Isles and the mountains of Coigach and Assynt. Some of the routes are covered in more detail by our walks booklet available locally.

Sites on the coastline are best visited at low tide and can be slippery so please take care and check the weather forecast and the tide times before you set out. Both are available in the information section of this site.

This leaflet has been produced in collaboration with the British Geological Survey and the North West Highlands Geopark. Further information about the Geopark area can be found on their website.

We are indebted to the author Dr Patrick Cossey for his contribution to the project and to Pete Harrison and Maarten Krabbendam for their assistance. We are also grateful to the following organisations for their financial assistance without which it would not have been possible.
The Coigach Assynt Living Landscape Partnership, The Heritage Lottery Fund, Scottish Natural Heritage, The Curry Fund of the Geologists’ Association, and Highland Council.