About the Arran Geopark

The Arran Geopark aims to promote and conserve Arran’s spectacular and globally important geology. Access to important geological sites has been improved, and information on the geology of the island is available at three interpretation centres and on six self-guided walks, five of which are now available – please click on the footprint symbol or walk title to download the information about that walk in pdf format.

North Arran Granite Sheets/sills
Central Complex Highland Border
Complex
New Red Sandstone Old Red Sandstone
Carboniferous Rocks Dalradian Schists
Roads Information Centre
Self-guided walks

1. Hutton’s Unconformity Walk 

See the outcrop where the ‘father of modern geology’ changed the way we view our planet for ever.

Lochranza Intepretation Centre

Learn about Arran’s spectacular and diverse geology, and how it influenced scientific thinking and the island’s industrial heritage.

4. Glen Rosa Walk

Discover how the erosive power of ice sculpted Arran’s dramatic granite mountains.

5. King’s Cave and Drumadoon Walk 

Enjoy spectacular views of the Drumadoon Sill’s sheer cliffs, and find evidence of Arran’s mysterious ‘hand-beast’.

2. North Arran Walk 

Revisit Arran’s industrial past, and follow in the footsteps of the largest invertebrate to ever walk on land!.

3. Corrie Shoreline Walk 

Follow Arran’s journey through 100 million years of geological time, from tropical seas to stormy deserts.

Brodick Castle Ranger Centre

Find out how the island’s geology relates to its stunning landscape, vital habitats and unique wildlife. Opening 5th July 2019

Arran Heritage Museum

View an extensive collection of geological specimens from all over Arran, as well as learning about the island’s history and heritage.

6. Kildonan Shore Walk 

Explore the evidence for continents breaking apart, and the remains of Arran’s magmatic past.

North Arran Granite Sheets/sills
Central Complex Highland Border
Complex
New Red Sandstone Old Red Sandstone
Carboniferous Rocks Dalradian Schists
Roads Information Centre
Self-guided walks

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