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Carreg Hir Standing Stone is a prehistoric monolith located in Wales and protected as a scheduled ancient monument by Cadw under reference MG275. The stone rises from bedrock composed of Wenlock sandstone and conglomerate, interbedded deposits formed during the Wenlock epoch of the Silurian period. This solid geological foundation has supported the monument for millennia, anchoring it firmly within the local landscape.
Standing stones of this type were typically erected during the Bronze Age, serving purposes that remain partly enigmatic but likely related to ritual, territorial marking, or commemorative practices. The Wenlock geology underlying Carreg Hir would have provided accessible stone suitable for working and transport by prehistoric communities. The monument's survival demonstrates the durability of its setting and the cultural significance that ensured its preservation across successive generations.
Today, Carreg Hir remains an important element of Wales's prehistoric heritage, its upright form still commanding attention across the landscape it has occupied since antiquity. The monument offers insight into the monumental practices and engineering capabilities of Bronze Age societies, while its continued protection by Cadw reflects its recognised archaeological and historical value within the Welsh cultural inheritance.
Carreg Hir Standing Stone is a scheduled monument protected by Cadw under reference MG275. View the official record →
Carreg Hir Standing Stone is a prehistoric monolith located in Wales and protected as a scheduled ancient monument by Cadw under reference MG275.
Carreg Hir 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.
Carreg Hir 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 MG275.
Several scheduled monuments lie within 10 km, including Caersws Roman Site (5.1 km), Caersws Roman road (5.1 km), Caersws Roman Fort: Section of South Western Defences (5.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Carreg Hir 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.
Carreg Hir Standing Stone stands on Wenlock Rocks (Undifferentiated), bedrock that formed in the Wenlock. The rock here is sandstone and conglomerate, interbedded.