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Troedrhiwhir Mountain ring cairn is a prehistoric ring cairn situated in Wales and designated as a scheduled monument under Cadw protection (reference CM352). The monument belongs to a widespread class of ceremonial and funerary structures erected across upland Britain during the Bronze Age, characterised by a circular arrangement of stones forming a distinctive ring rather than a solid mound.
The cairn occupies bedrock of Llandovery sandstone and conglomerate, interbedded deposits laid down during the Ordovician period. This geology would have provided readily available stone for construction, with weathered fragments of both materials suitable for building the monument's characteristic ring form. The exposed, elevated landscape of Troedrhiwhir Mountain offered a prominent location for what may have served ritual, ceremonial or burial functions within prehistoric communities.
Ring cairns remain less fully understood than their solid cairn counterparts, though they typically mark significant sites in the Bronze Age landscape. The Cadw scheduling acknowledges the monument's archaeological importance as evidence of prehistoric settlement and ritual practice in Wales, preserving it for future study and public appreciation of the region's deep archaeological heritage.
Troedrhiwhir Mountain ring cairn is a scheduled monument protected by Cadw under reference CM352. View the official record →
Troedrhiwhir Mountain ring cairn is a prehistoric ring cairn situated in Wales and designated as a scheduled monument under Cadw protection (reference CM352).
Troedrhiwhir Mountain 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.
Troedrhiwhir Mountain 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 CM352.
Several scheduled monuments lie within 10 km, including Burnt Mound on Esgair Ferchon (5.3 km), Cefn y Bryn Ring Cairn (5.9 km), Nant Gwyn, round cairn and standing stone to S of (6.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Troedrhiwhir Mountain 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.
Troedrhiwhir Mountain ring cairn stands on Llandovery Rocks (Undifferentiated), bedrock that formed in the Llandovery. The rock here is sandstone and conglomerate, interbedded.