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Garreg Standing Stones is a prehistoric standing stone monument located in Wales and protected by Cadw under reference CD220. The monument stands upon bedrock of Ashgill Rocks, undifferentiated strata comprising mudstone, siltstone and sandstone deposited during the Ashgill period of the late Ordovician. This geological foundation reflects the complex sedimentary landscape of medieval and later Wales, where such dense, fine-grained rocks formed the stable base upon which Bronze Age and earlier communities erected their ritual and territorial markers.
Standing stones served multiple functions in prehistoric Welsh society, functioning as burial markers, territorial boundaries, or focal points for ceremonial activity. The stone's persistence across millennia testifies to both its original significance and the durable local geology. Positioned within the broader distribution of standing stones across the Welsh uplands, Garreg Standing Stones forms part of the landscape grammar through which prehistoric communities organised their knowledge of place and practised their beliefs.
The monument's preservation under Cadw protection ensures its continued study and conservation. As an unexcavated site, it retains archaeological potential to yield evidence of Bronze Age practices, local stone sources and the social networks that connected dispersed upland communities. Its survival amid the transforming Welsh landscape makes it an important record of prehistoric settlement patterns and ceremonial life.
Garreg Standing Stones is a scheduled monument protected by Cadw under reference CD220. View the official record →
Garreg Standing Stones is a prehistoric standing stone monument located in Wales and protected by Cadw under reference CD220.
Garreg Standing Stones 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.
Garreg Standing Stones 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 CD220.
Several scheduled monuments lie within 10 km, including Dyffryn-Bern Inscribed Stone (2.4 km), Castell Nadolig (2.7 km), Castell S of Pen-y-Foel (4.3 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Garreg Standing Stones'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.
Garreg Standing Stones stands on Ashgill Rocks (Undifferentiated), bedrock that formed in the Ashgill. The rock here is mudstone, siltstone and sandstone.