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Bryntwppa stone row is a prehistoric alignment of stones located in Wales, standing upon bedrock of Ordovician mafic tuff. This volcanic foundation, formed in the Ordovician period over 440 million years ago, provided the natural landscape from which the monument's stones were gathered. Stone rows of this type are typically associated with Bronze Age ritual or territorial practice, though precise dating and original purpose remain matters of archaeological interpretation.
The monument is protected by Cadw, the Welsh heritage organisation, under reference RD236. The site's survival reflects the enduring presence of these monumental arrangements across the Welsh uplands, where such alignments appear across the Bronze Age archaeological record. The exposed Ordovician extrusive rocks, weathered and fractured by millennia, remain visible in the surrounding terrain, demonstrating the local geological resources that Bronze Age communities would have worked with when establishing this ceremonial or functional landscape feature.
Bryntwppa stone row is a scheduled monument protected by Cadw under reference RD236. View the official record →
Bryntwppa stone row is a prehistoric alignment of stones located in Wales, standing upon bedrock of Ordovician mafic tuff. It is designated a Scheduled Ancient Monument by Cadw under reference RD236.
Bryntwppa stone row dates from the prehistoric period, and is classified as a stone row. It is one of over 32,000 scheduled monuments protected across the UK.
Bryntwppa stone row 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 RD236.
Several scheduled monuments lie within 10 km, including Llwyn-y-wrach standing stone (5 km), Aberedw Castle (6.9 km), Cwm-piban Platform House (6.9 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Bryntwppa stone row'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.
Bryntwppa stone row stands on Unnamed Extrusive Rocks, Ordovician, bedrock that formed in the Ordovician. The rock here is mafic tuff.