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Crugyn Tumulus is a prehistoric round barrow situated in Wales and protected as a scheduled ancient monument by Cadw under reference RD040. The monument rises from bedrock composed of Llandovery Rocks—undifferentiated mudstone, siltstone and sandstone deposited during the Llandovery period of the Silurian age, roughly 444 to 419 million years ago. This geological foundation of mixed sedimentary strata would have been well-established landscape when the barrow was constructed during the Bronze Age or earlier Neolithic period.
Round barrows of this type were built as burial monuments, typically comprising an earthen mound raised over one or more interments, often accompanied by grave goods reflecting the deceased's status. The mound itself would have been constructed from locally available soils and stone, contrasting visibly against the surrounding topography to serve as a permanent marker of the burial place.
The survival of Crugyn Tumulus as an upstanding earthwork demonstrates the resilience of such monuments across millennia, despite the weathering action upon the underlying mudstone and siltstone bedrock. Its protection recognises the archaeological significance of the site as evidence of prehistoric settlement, burial practice and territorial organisation in Wales.
Crugyn Tumulus is a scheduled monument protected by Cadw under reference RD040. View the official record →
Crugyn Tumulus is a prehistoric round barrow situated in Wales and protected as a scheduled ancient monument by Cadw under reference RD040.
Crugyn Tumulus 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.
Crugyn Tumulus 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 RD040.
Several scheduled monuments lie within 10 km, including Llyn Gwyn Earthwork (7.9 km), Glog Fawr Platform Cairn (8.6 km), Standing Stone, Llanwrthwl Churchyard (8.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Crugyn Tumulus'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.
Crugyn Tumulus stands on Llandovery Rocks (Undifferentiated), bedrock that formed in the Llandovery. The rock here is mudstone, siltstone and sandstone.