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Pen Cerrigdiddos Round Cairns is a prehistoric round barrow situated in Wales. The monument comprises a burial mound constructed from stone, typical of funerary monuments built during the Bronze Age across Britain and Ireland. Such cairns served as focal points for ritual and commemoration, marking the graves of individuals of sufficient social status to warrant substantial earthwork construction.
The site rests upon bedrock of Llandovery age, comprising mudstone, siltstone and sandstone. These sedimentary rocks, deposited in ancient marine environments during the early Palaeozoic period, would have presented a challenging landscape for monument builders, who selected and transported stone from the local geology to raise the cairn. The choice of location on this exposed terrain reflects the prominence and visibility such burial monuments were designed to achieve within the prehistoric landscape.
The round cairns are protected by Cadw, the Welsh Heritage Monuments service, under reference CM305. This designation recognises the site's archaeological significance as evidence of Bronze Age funerary practice and social organisation in Wales. The monument remains an important physical record of prehistoric settlement patterns and burial customs in this region.
Pen Cerrigdiddos Round Cairns is a scheduled monument protected by Cadw under reference CM305. View the official record →
Pen Cerrigdiddos Round Cairns is a prehistoric round barrow situated in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference CM305.
Pen Cerrigdiddos Round Cairns 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.
Pen Cerrigdiddos Round Cairns 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 CM305.
Several scheduled monuments lie within 10 km, including Nantiwrch round barrow (4 km), Roman Road c. 400m S of Benlan Farm (5.6 km), Dolaucothi Gold Mines (5.8 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Pen Cerrigdiddos Round Cairns'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.
Pen Cerrigdiddos Round Cairns stands on Llandovery Rocks (Undifferentiated), bedrock that formed in the Llandovery. The rock here is mudstone, siltstone and sandstone.