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Garnedd-goch round cairn is a prehistoric stone mound built upon Ordovician felsic tuff, volcanic bedrock that originated in ancient seas over 450 million years ago. Situated in Wales, the cairn represents a burial monument constructed during the prehistoric period when communities marked significant individuals or family groups with substantial stone heaps. The underlying geology of extrusive igneous rock would have provided a naturally hard, rocky terrain, making stone gathering a necessary but practical undertaking for the monument's builders.
The cairn's construction reflects the enduring traditions of commemorative burial architecture prevalent across Bronze Age and later prehistoric Wales. Its circular form is characteristic of round cairns found throughout Britain and Ireland, monuments that frequently contained central burial chambers or cremation deposits. The surrounding landscape of the Ordovician uplands would have shaped both the visual prominence of the monument and the availability of stone for its construction.
Garnedd-goch round cairn is now protected as a scheduled ancient monument under Cadw's guardianship, registered under the reference CN387. This designation recognises its archaeological significance and ensures the preservation of the monument for future study and public benefit.
Garnedd-goch round cairn is a scheduled monument protected by Cadw under reference CN387. View the official record →
Garnedd-goch round cairn is a prehistoric stone mound built upon Ordovician felsic tuff, volcanic bedrock that originated in ancient seas over 450 million years ago. It is designated a Scheduled Ancient Monument by Cadw under reference CN387.
Garnedd-goch round cairn dates from the prehistoric period, and is classified as a round cairn. It is one of over 32,000 scheduled monuments protected across the UK.
Garnedd-goch round cairn is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is CN387.
Several scheduled monuments lie within 10 km, including Dolbenmaen Castle Mound (6.5 km), Craig-y-Tyddyn Camp (6.8 km), Gorseddau or Ynysypandy Slate Factory (7.3 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Garnedd-goch round cairn's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Garnedd-goch round cairn stands on Unnamed Extrusive Rocks, Ordovician, bedrock that formed in the Ordovician. The rock here is felsic tuff.