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Crugiau Round Barrows is a prehistoric round barrow located in Wales and protected by Cadw under reference CM309. The monument sits upon bedrock of Llanvirn age, composed of mudstone, siltstone and sandstone formations typical of the Whiterock period. This geology, characteristic of much of upland Wales, would have presented distinct challenges and opportunities to the Bronze Age communities who constructed such burial monuments across the Welsh landscape.
Round barrows represent one of the most distinctive monument types of the Bronze Age, serving as burial places for individuals of status within their communities. The earthwork at Crugiau preserves evidence of these prehistoric funerary practices and social organisation. The underlying geology of mudstone and softer sedimentary rocks would have influenced both the barrow's construction and its subsequent preservation, affecting drainage and the visibility of the earthwork in the surrounding terrain.
The monument's designation by Cadw ensures the protection of this important archaeological site for future study and public understanding. Round barrows across Wales demonstrate patterns of settlement, land use and belief systems during the Bronze Age period, and Crugiau contributes to this broader archaeological record of prehistoric Wales.
Crugiau Round Barrows is a scheduled monument protected by Cadw under reference CM309. View the official record →
Crugiau Round Barrows is a prehistoric round barrow located in Wales and protected by Cadw under reference CM309.
Crugiau Round Barrows 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.
Crugiau Round Barrows 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 CM309.
Several scheduled monuments lie within 10 km, including Iron Age Hillslope Enclosure in Canaston Wood (7.3 km), Narberth Mountain Enclosure (7.6 km), Molleston Camp (8.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Crugiau Round Barrows'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.
Crugiau Round Barrows stands on Llanvirn Rocks (Undifferentiated), bedrock that formed in the Whiterock. The rock here is mudstone, siltstone and sandstone.