© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw
Pebyll Ring Cairn is a prehistoric ring cairn located in Wales and protected as a scheduled monument under Cadw reference GM330. Ring cairns are ceremonial or ritual monuments characteristic of Bronze Age Wales, typically comprising a circular bank of stones enclosing an open or partially open interior. These structures often served commemorative functions within early bronze-working communities.
The cairn sits upon bedrock of the South Wales Upper Coal Measures Formation, a sequence of mudstones, siltstones and sandstones interbedded with coal and ironstone deposits laid down during the Westphalian period of the Carboniferous. This geological foundation, capped with ferricrete, would have provided builders with locally available stone suitable for cairn construction, whilst the exposed coal measures landscape offered an elevated setting visible across the surrounding terrain.
The monument's preservation under statutory protection reflects its significance as evidence of Bronze Age ritual practice in the Welsh landscape. The ring cairn's form and setting contribute to understanding prehistoric settlement patterns and ceremonial traditions in South Wales, a region rich in contemporary archaeological remains spanning the metal-working ages.
Pebyll Ring Cairn is a scheduled monument protected by Cadw under reference GM330. View the official record →
Pebyll Ring Cairn is a prehistoric ring cairn located in Wales and protected as a scheduled monument under Cadw reference GM330.
Pebyll Ring Cairn dates from the prehistoric period, and is classified as a ring cairn. It is one of over 32,000 scheduled monuments protected across the UK.
Pebyll Ring 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 GM330.
Several scheduled monuments lie within 10 km, including Clawdd Mawr, Mynydd Caerau (2.9 km), Round Barrow on the Werfa (3.1 km), Mynydd Caerau Round Cairns (3.7 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Pebyll Ring 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.
Pebyll Ring Cairn stands on South Wales Upper Coal Measures Formation, bedrock that formed in the Westphalian. The rock here is mudstone, siltstone, sandstone, coal, ironstone and ferricrete.