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Bryn Maen Standing Stone is a prehistoric standing stone located in Wales and protected by Cadw as a scheduled ancient monument under reference CM192. The stone stands upon bedrock of the South Wales Upper Coal Measures Formation, a sequence of mudstone, siltstone and sandstone interspersed with coal and ironstone seams, deposited during the Westphalian period of the Carboniferous era some 315 million years ago. This geological setting reflects the industrial heritage of South Wales, where such coal-bearing strata have long been exploited for fuel and mineral resources.
Standing stones of this type were erected during the Bronze Age and later prehistory, serving purposes that may have included territorial markers, burial monuments or ritual focal points within the landscape. The survival of Bryn Maen demonstrates the durability of stone monuments across millennia of changing land use and climate. Its position within the Welsh uplands places it within a significant distribution of such monuments, many of which remain important reference points in the archaeological understanding of prehistoric settlement and belief systems across Britain.
The monument's protection under Cadw ensures its preservation for future study and public engagement with Wales's ancient heritage.
Bryn Maen Standing Stone is a scheduled monument protected by Cadw under reference CM192. View the official record →
Bryn Maen Standing Stone is a prehistoric standing stone located in Wales and protected by Cadw as a scheduled ancient monument under reference CM192.
Bryn Maen Standing Stone dates from the prehistoric period, and is classified as a standing stone. It is one of over 32,000 scheduled monuments protected across the UK.
Bryn Maen Standing Stone 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 CM192.
Several scheduled monuments lie within 10 km, including St Michael's Chapel, Cwrt-y-Carne (6.5 km), Capel Isaf Cemetery (7.1 km), Pencoed Lead Works (7.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Bryn Maen Standing Stone'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.
Bryn Maen Standing Stone stands on South Wales Upper Coal Measures Formation, bedrock that formed in the Westphalian. The rock here is mudstone, siltstone, sandstone, coal, ironstone and ferricrete.