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Nant Croes-y-wernen stone circle is a prehistoric ceremonial monument located in Wales, protected as a scheduled ancient monument by Cadw under reference DE300. The site stands on bedrock of Ashgill Rocks, a geological formation comprising mudstone, siltstone and sandstone deposited during the Ashgill period of the Ordovician era. This ancient bedrock provides the foundation for one of Wales's stone circles, monuments typically erected during the Bronze Age to serve ritual, burial or astronomical functions.
Stone circles represent a distinctive monument type distributed across the western and northern regions of Britain and Ireland. Their construction required substantial communal effort, suggesting these sites held significant ceremonial importance within prehistoric societies. The stones themselves were often selected from local geological sources, making use of naturally available materials.
The positioning of Nant Croes-y-wernen within the Welsh landscape reflects the Bronze Age preference for elevated or visually prominent locations. The site's preservation under Cadw's protection ensures that this monument continues to contribute to our understanding of prehistoric ritual practice and the organization of Bronze Age communities in Wales.
Nant Croes-y-wernen stone circle is a scheduled monument protected by Cadw under reference DE300. View the official record →
Nant Croes-y-wernen stone circle is a prehistoric ceremonial monument located in Wales, protected as a scheduled ancient monument by Cadw under reference DE300.
Nant Croes-y-wernen 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.
Nant Croes-y-wernen 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 DE300.
Several scheduled monuments lie within 10 km, including Craig Berwyn Round Barrow (7.1 km), Y Foel Ddu Round Barrow (7.8 km), Cairns, Settlements & Field Systems of Prehistoric & Medieval date at Pennant above Nant Esgeiriau (7.9 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Nant Croes-y-wernen 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.
Nant Croes-y-wernen stone circle stands on Ashgill Rocks (Undifferentiated), bedrock that formed in the Ashgill. The rock here is mudstone, siltstone and sandstone.