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Twyn Cerrig-Cadarn Round Cairn is a prehistoric round barrow situated in Wales and protected as a scheduled monument by Cadw under reference BR105. The cairn sits upon bedrock composed of Lower Devonian rocks—mudstone, siltstone and sandstone laid down during the Early Devonian period over 400 million years ago. This geological foundation provided the stone-rich landscape from which Bronze Age builders sourced material for the monument's construction.
Round cairns of this type typically served as burial monuments for prominent individuals or families during the Bronze Age, though the date of this particular example has not been firmly established through excavation. The monument's name, meaning "height of Cerrig-Cadarn" or "strong stones," reflects its prominent position in the local topography and the substantial stonework of its construction. Such barrows often stood as visible landmarks across the prehistoric landscape, serving both practical and ceremonial functions within Bronze Age communities.
The survival of Twyn Cerrig-Cadarn demonstrates the enduring presence of Bronze Age funerary monuments across the Welsh landscape. Its protection acknowledges the archaeological and historical significance of these structures, which continue to provide evidence of prehistoric settlement patterns, burial practices and the relationship between Bronze Age communities and their environment.
Twyn Cerrig-Cadarn Round Cairn is a scheduled monument protected by Cadw under reference BR105. View the official record →
Twyn Cerrig-Cadarn Round Cairn is a prehistoric round barrow situated in Wales and protected as a scheduled monument by Cadw under reference BR105.
Twyn Cerrig-Cadarn Round Cairn 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.
Twyn Cerrig-Cadarn 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 BR105.
Several scheduled monuments lie within 10 km, including Round Cairn 800m SW of Gwar-y-Felin (4.3 km), Maen Richard Prehistoric Standing Stone (4.3 km), Corn y Fan Camp (4.9 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Twyn Cerrig-Cadarn 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.
Twyn Cerrig-Cadarn Round Cairn stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is mudstone, siltstone and sandstone.