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Blaenau Stone Circle is a prehistoric stone circle located in Wales and protected as an ancient monument by Cadw under reference BR167. The circle sits upon bedrock of Lower Devonian age, comprising mudstone, siltstone and sandstone deposited during the Early Devonian period, roughly 400 million years ago. This geology would have presented considerable challenges to the monument's builders, who selected this exposed upland location despite the hard, fractured stone beneath.
As a stone circle, Blaenau represents ritual or ceremonial practice during the Bronze Age or earlier prehistoric periods, when such monuments were constructed across Britain and Ireland. The specific arrangement of stones at this site reflects the astronomical and spiritual concerns of its builders, though much of the circle's original form may be lost to time and weathering.
The monument survives today as remains, testament to the durability of stone and the persistence of prehistoric construction on the Welsh landscape. The Devonian bedrock that posed challenges to its ancient builders has also ensured the circle's survival, anchoring the stones in place across millennia. Its protection by Cadw recognises its significance as evidence of Wales's deep prehistoric heritage.
Remains of Blaenau Stone Circle is a scheduled monument protected by Cadw under reference BR167. View the official record →
Blaenau Stone Circle is a prehistoric stone circle located in Wales and protected as an ancient monument by Cadw under reference BR167.
Remains of Blaenau Stone Circle dates from the prehistoric period, and is classified as a stone circle. It is one of over 32,000 scheduled monuments protected across the UK.
Remains of Blaenau Stone Circle 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 BR167.
Several scheduled monuments lie within 10 km, including Wern Frank Wood round cairn (6.1 km), Mynydd Bychan platform cairn (6.8 km), Bwlch Bach a'r Grib round cairn (8.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Remains of Blaenau Stone Circle'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.
Remains of Blaenau Stone Circle stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is mudstone, siltstone and sandstone.