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Cwm-Maerdy Standing Stone is a prehistoric standing stone located in Wales and protected as a scheduled ancient monument by Cadw under reference RD113. The stone stands within an area of Llanvirn bedrock, formed during the Whiterock period from mudstone, siltstone and sandstone geology characteristic of the broader South Wales landscape.
Standing stones of this type were typically erected during the Neolithic or Bronze Age periods, serving purposes that may have included territorial markers, burial monuments or sites of ritual significance. Their isolated positions across the Welsh uplands suggest deliberate placement in visible locations within the contemporary landscape.
The protection of Cwm-Maerdy Standing Stone reflects its importance as evidence of early prehistoric settlement and ceremonial practice in Wales. Such monuments survive as among the oldest human structures in the Welsh countryside and provide insight into the concerns and capabilities of ancient communities who shaped their environment through monumental stone work.
Cwm-Maerdy Standing Stone is a scheduled monument protected by Cadw under reference RD113. View the official record →
Cwm-Maerdy Standing Stone is a prehistoric standing stone located in Wales and protected as a scheduled ancient monument by Cadw under reference RD113.
Cwm-Maerdy 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.
Cwm-Maerdy 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 RD113.
Several scheduled monuments lie within 10 km, including Cefn Wylfre Stone Circle and Round Barrow (7.7 km), Cefn Wylfre Round Barrows (7.8 km), Cefn Wylfre Platform House (8 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Cwm-Maerdy 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.
Cwm-Maerdy Standing Stone stands on Llanvirn Rocks (Undifferentiated), bedrock that formed in the Whiterock. The rock here is mudstone, siltstone and sandstone.