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Nant y Gro round cairn is a prehistoric funerary monument located in Wales. Built upon bedrock of Llandovery sandstone and conglomerate, the cairn comprises stones gathered from the local geology and assembled into a circular mound. Round cairns of this type were constructed during the Bronze Age as burial monuments, often serving as the focal points of ritual landscapes and marking the resting places of the community's dead.
The site's position on Llandovery rocks reflects the Bronze Age builder's practical relationship with the immediate landscape. Stone from the bedrock would have been readily available for construction, making this location a natural choice for monument building. The interbedded nature of the local sandstone and conglomerate would have provided variable stone sizes suitable for cairn construction.
The monument is protected by Cadw, the Welsh Historic Monuments service, under the reference BR398, ensuring its preservation for future study and appreciation. Round cairns such as this contribute significantly to understanding Bronze Age funerary practices, settlement patterns and the way prehistoric communities marked their territories and commemorated their dead across the Welsh landscape.
Nant y Gro round cairn is a scheduled monument protected by Cadw under reference BR398. View the official record →
Nant y Gro round cairn is a prehistoric funerary monument located in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference BR398.
Nant y Gro 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.
Nant y Gro 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 BR398.
Several scheduled monuments lie within 10 km, including Gorllwyn round cairns (3.7 km), Gurnos ring cairn (4.5 km), Darren round cairn (6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Nant y Gro 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.
Nant y Gro round cairn stands on Llandovery Rocks (Undifferentiated), bedrock that formed in the Llandovery. The rock here is sandstone and conglomerate, interbedded.