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Cwm y Saeson Standing Stone is a prehistoric standing stone located in Wales, protected as a scheduled monument by Cadw under reference RD119. The stone rises from bedrock composed of Llandovery rocks, an undifferentiated sequence of mudstone, siltstone and sandstone formations dating to the Llandovery period. This geological foundation provided the local material from which such monuments could be quarried and erected during prehistory.
Standing stones of this type were commonly raised across Wales during the Bronze Age and later periods, serving purposes that remain subject to archaeological interpretation. They may have marked territorial boundaries, burial sites, gathering places or astronomical alignments, though such functions varied by location and period. The survival of Cwm y Saeson demonstrates the enduring monumentality of these stones when set in stable bedrock.
The monument's preservation reflects the effectiveness of modern heritage protection in Wales. Scheduled monument status ensures that the standing stone and its immediate archaeological context remain safeguarded from damage, allowing future study to enhance understanding of prehistoric settlement patterns and ritual practices across the Welsh landscape.
Cwm y Saeson Standing Stone is a scheduled monument protected by Cadw under reference RD119. View the official record →
Cwm y Saeson Standing Stone is a prehistoric standing stone located in Wales, protected as a scheduled monument by Cadw under reference RD119.
Cwm y Saeson 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 y Saeson 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 RD119.
Several scheduled monuments lie within 10 km, including Cefn Bychan Mound (Pillow Mound) (7.1 km), Maen Serth, Esgair Dderw (7.1 km), Clap yr Arian cairn (7.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Cwm y Saeson 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 y Saeson Standing Stone stands on Llandovery Rocks (Undifferentiated), bedrock that formed in the Llandovery. The rock here is mudstone, siltstone and sandstone.