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Crugian Bach stone circle is a prehistoric monument comprising a ring of standing stones set upon Ashgill bedrock in Wales. The underlying geology of mudstone, siltstone and sandstone, formed during the Ashgill period, has weathered to create the soft foundation on which the circle was constructed. This stone circle represents a type of ritual monument commonly erected during the Bronze Age, when such sites served as focal points for ceremonial and communal gatherings.
The monument stands within a landscape shaped by ancient sedimentary deposits, typical of the upland terrain where many Welsh stone circles are located. The Ashgill rocks beneath the site, though susceptible to erosion, would have presented the Bronze Age builders with accessible stone for quarrying and shaping, alongside the naturally occurring boulders which may have been incorporated into the ring structure.
Crugian Bach stone circle is today protected by Cadw, the historic monuments service of Wales, under reference BR274. This statutory protection recognises the monument's archaeological significance as an example of prehistoric ceremonial architecture. The site remains an important record of Bronze Age ritual practice and settlement patterns across the Welsh landscape.
Crugian Bach stone circle is a scheduled monument protected by Cadw under reference BR274. View the official record →
Crugian Bach stone circle is a prehistoric monument comprising a ring of standing stones set upon Ashgill bedrock in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference BR274.
Crugian Bach stone circle dates from the prehistoric period, and is classified as a stone circle. It is one of over 32,000 scheduled monuments protected across the UK.
Crugian Bach stone circle 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 BR274.
Several scheduled monuments lie within 10 km, including Gorllwyn round cairns (3.9 km), Carn Pantmaenllwyd cairn (4.3 km), Gurnos ring cairn (4.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Crugian Bach stone circle'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.
Crugian Bach stone circle stands on Ashgill Rocks (Undifferentiated), bedrock that formed in the Ashgill. The rock here is mudstone, siltstone and sandstone.