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Garreg Wen Standing Stone is a prehistoric standing stone located in Wales and protected as a scheduled monument by Cadw under reference CM314. The stone stands on bedrock composed of Ashgill mudstone, siltstone and sandstone, geological deposits laid down in the Ashgill period of the Ordovician era. These fine-grained sedimentary rocks, which underlie much of the Welsh landscape, would have been familiar to the prehistoric communities who erected such monuments.
The monument belongs to a widespread tradition of standing stone construction that flourished across Britain and Ireland during the Neolithic and Bronze Age periods. Such stones often served as territorial markers, meeting places, or focal points for ritual activity within their communities. Their prominent placement within the landscape ensured visibility and permanence across generations.
The name Garreg Wen, derived from Welsh meaning 'white stone', suggests the monument's appearance or a distinctive feature recognisable to the local population. The preservation of this Welsh-language designation reflects the enduring cultural significance of the site within its landscape. Today the monument remains an important marker of prehistoric settlement patterns and belief systems across Wales, contributing to our understanding of early societies who left few other records of their presence.
Garreg Wen Standing Stone is a scheduled monument protected by Cadw under reference CM314. View the official record →
Garreg Wen Standing Stone is a prehistoric standing stone located in Wales and protected as a scheduled monument by Cadw under reference CM314.
Garreg Wen 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.
Garreg Wen 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 CM314.
Several scheduled monuments lie within 10 km, including Crug Ieuan Round Barrow (1.9 km), Crug Glas Round Barrow (3.4 km), Trichrug Round Barrows (3.7 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Garreg Wen 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.
Garreg Wen Standing Stone stands on Ashgill Rocks (Undifferentiated), bedrock that formed in the Ashgill. The rock here is mudstone, siltstone and sandstone.