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Crug Gorllwyn Round Barrow is a prehistoric burial mound situated in Wales on bedrock of Ashgill mudstone, siltstone and sandstone. Round barrows of this type were typically constructed during the Bronze Age as monuments for the burial of important community members, with the earthwork serving both as a grave marker and a focal point for ritual activity. The monument is protected by Cadw, the Welsh Historic Monuments service, under reference CM108.
The barrow's position on the Ashgill geological formation has influenced its preservation and current appearance. The underlying mudstone and siltstone geology would have affected drainage patterns around the monument and determined the character of soil available to its Bronze Age builders. Such geological factors influenced where prehistoric communities chose to establish burial grounds and how these monuments have weathered millennia of Welsh weather.
The site remains an important evidence of Bronze Age burial practices and territorial organisation in Wales. Round barrows like Crug Gorllwyn are often found distributed across landscapes in groups or alignments, suggesting they served as markers of ancestral claims to land. The monument contributes to our understanding of prehistoric settlement patterns and the spiritual beliefs of Bronze Age communities in this region.
Crug Gorllwyn Round Barrow is a scheduled monument protected by Cadw under reference CM108. View the official record →
Crug Gorllwyn Round Barrow is a prehistoric burial mound situated in Wales on bedrock of Ashgill mudstone, siltstone and sandstone. It is designated a Scheduled Ancient Monument by Cadw under reference CM108.
Crug Gorllwyn Round Barrow dates from the prehistoric period, and is classified as a round barrow. It is one of over 32,000 scheduled monuments protected across the UK.
Crug Gorllwyn Round Barrow 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 CM108.
Several scheduled monuments lie within 10 km, including Crug Ieuan Round Barrow (3 km), Garreg Wen Standing Stone (3.2 km), Crug Glas Round Barrow (3.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Crug Gorllwyn Round Barrow'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.
Crug Gorllwyn Round Barrow stands on Ashgill Rocks (Undifferentiated), bedrock that formed in the Ashgill. The rock here is mudstone, siltstone and sandstone.