© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw
Cerrig Cedny is a prehistoric round cairn situated in Wales, built upon bedrock composed of Ashgill Rocks of Undifferentiated type, formed from mudstone, siltstone and sandstone deposits. This geology would have provided readily available stone for cairn construction, with weathered material naturally exposed across the landscape. The monument is protected by Cadw, the Welsh heritage organisation, under reference CM341, reflecting its archaeological significance within Wales's prehistoric record.
Round cairns of this type typically date to the Bronze Age, serving as burial monuments for individuals or small family groups. Their construction involved the deliberate piling of stone gathered from the surrounding terrain, creating a distinctive mound visible across considerable distances. The specific naming of Cerrig Cedny suggests a long-established Welsh place tradition associated with the site.
The survival of this cairn to the present day, despite millennia of natural weathering and land use changes, demonstrates the durability of stone construction in the Welsh landscape. The monument's location and geological setting are integral to understanding both its original purpose and its role within the prehistoric settlement patterns of the region.
Cerrig Cedny round cairn is a scheduled monument protected by Cadw under reference CM341. View the official record →
Cerrig Cedny is a prehistoric round cairn situated in Wales, built upon bedrock composed of Ashgill Rocks of Undifferentiated type, formed from mudstone, siltstone and sandstone deposits. It is designated a Scheduled Ancient Monument by Cadw under reference CM341.
Cerrig Cedny round cairn dates from the prehistoric period, and is classified as a round cairn. It is one of over 32,000 scheduled monuments protected across the UK.
Cerrig Cedny 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 CM341.
Several scheduled monuments lie within 10 km, including Carn Wen round cairn (1.3 km), Bryn-Poeth-Uchaf, ring cairn to NE of (2.2 km), Stone Circle 200m SW of Cerrig Cynant (2.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Cerrig Cedny 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.
Cerrig Cedny round cairn stands on Ashgill Rocks (Undifferentiated), bedrock that formed in the Ashgill. The rock here is mudstone, siltstone and sandstone.