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Nant Sais Round Barrow is a prehistoric funerary monument situated in Wales. Round barrows of this type were constructed during the Bronze Age as earthen or stone-built mounds to cover burial deposits, typically containing cremated or inhumed remains. They often served as focal points for successive interments and ritual activity across several centuries. The barrow sits upon bedrock of Ashgill rocks, a geological formation comprising mudstone, siltstone and sandstone that dates to the Ashgill period of the Ordovician. This underlying geology would have influenced the monument's construction, as builders worked with locally available stone and weathered material.
The monument is protected by Cadw, the Welsh heritage organisation responsible for safeguarding nationally significant archaeological sites. Its preservation status reflects recognition of its importance to understanding Bronze Age burial practices and settlement patterns in Wales. The specific location of Nant Sais preserves evidence of prehistoric ritual and commemoration in the Welsh landscape, contributing to our understanding of how ancient communities marked the lives of their dead.
Nant Sais Round Barrow is a scheduled monument protected by Cadw under reference CM106. View the official record →
Nant Sais Round Barrow is a prehistoric funerary monument situated in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference CM106.
Nant Sais Round Barrow 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.
Nant Sais Round Barrow 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 CM106.
Several scheduled monuments lie within 10 km, including Garreg Wen Standing Stone (3.2 km), Crug Ieuan Round Barrow (4.1 km), Crug Glas Round Barrow (5.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Nant Sais Round Barrow'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 Sais Round Barrow stands on Ashgill Rocks (Undifferentiated), bedrock that formed in the Ashgill. The rock here is mudstone, siltstone and sandstone.