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Penmoelallt Round Barrows is a prehistoric round barrow situated on Dinantian limestone geology in Wales. The site lies above bedrock composed of undifferentiated Dinantian rocks formed during the Mississippian period, comprising limestone with subordinate sandstone and argillaceous layers. This limestone foundation would have influenced both the construction methods available to Neolithic and Bronze Age communities and the preservation of archaeological deposits within the barrow mound itself.
The monument is protected by Cadw, the Welsh historic monuments service, under the reference GM528. Round barrows of this type typically date to the Bronze Age and functioned as burial monuments, often sited on prominent locations or ridgelines to remain visible across the landscape. The presence of multiple barrows at Penmoelallt suggests repeated use of the location for funerary practice across generations.
The underlying Dinantian limestone has shaped both the monument's current form and its long-term survival. The relatively stable geology would have allowed Bronze Age builders to construct robust mounds and secure burial chambers, whilst the well-drained limestone substrate aided preservation of the site's archaeological integrity over subsequent millennia.
Penmoelallt Round Barrows is a scheduled monument protected by Cadw under reference GM528. View the official record →
Penmoelallt Round Barrows is a prehistoric round barrow situated on Dinantian limestone geology in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference GM528.
Penmoelallt 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.
Penmoelallt 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 GM528.
Several scheduled monuments lie within 10 km, including Tramroad East of Robert's Town Bridge, Aberdare (6 km), Iron Tram Bridge, Robertstown (6 km), Garn Las Earthwork (6.1 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Penmoelallt 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.
Penmoelallt Round Barrows stands on Dinantian Rocks (Undifferentiated), bedrock that formed in the Mississippian. The rock here is limestone with subordinate sandstone and argillaceous rocks.