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Rhos Fach standing stone pair is a prehistoric stone row comprising two upright stones positioned on the Arenigian bedrock of mid-Wales. The stones stand upon geological foundations formed from mudstone, siltstone and sandstone of the Arenig Rocks, a terrain characteristic of the region's ancient landscape. Such paired stone arrangements typically date to the Bronze Age or earlier Neolithic periods, though precise dating for this monument remains uncertain without excavation.
The monument's modest scale—a pair rather than an extended alignment—suggests it may have marked a territorial boundary, ritual site or burial location within its contemporary landscape. Standing stones of this type were frequently positioned on elevated ground or at natural landscape features, serving as enduring markers across the Welsh uplands. The Arenigian geology of the site would have provided suitable stone for construction by prehistoric peoples working with stone extraction techniques available to them.
Today Rhos Fach standing stone pair remains protected by Cadw, the Welsh heritage monument service, under the reference PE497. The monument survives as evidence of human activity and ceremonial or territorial practice in the Welsh uplands during prehistory, preserving a connection to the region's earliest inhabitants and their engagement with the landscape.
Rhos Fach standing stone pair is a scheduled monument protected by Cadw under reference PE497. View the official record →
Rhos Fach standing stone pair is a prehistoric stone row comprising two upright stones positioned on the Arenigian bedrock of mid-Wales. It is designated a Scheduled Ancient Monument by Cadw under reference PE497.
Rhos Fach standing stone pair 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.
Rhos Fach standing stone pair 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 PE497.
Several scheduled monuments lie within 10 km, including Capel Nebo Standing Stone (5.1 km), Maen Pica (5.3 km), Standing Stone 495m NW of Coynant (5.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Rhos Fach standing stone pair'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.
Rhos Fach standing stone pair stands on Arenig Rocks (Undifferentiated), bedrock that formed in the Arenigian. The rock here is mudstone, siltstone and sandstone.