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Crug Gwyn Round Barrow is a prehistoric burial mound located in Wales and protected as a scheduled monument under Cadw reference CM117. Round barrows of this type are characteristic Bronze Age monuments, though some may have earlier origins, constructed to contain cremated or inhumed remains of significant individuals within their communities. The monument sits upon Ashgill Rocks, a geological formation of mudstone, siltstone and sandstone that dates to the Ashgill period of the Late Ordovician, creating a foundation of soft sedimentary stone beneath the barrow's earthwork.
The barrow's position on this underlying geology would have influenced both its construction and long-term preservation. The workings of earlier communities in shaping earth and stone across this landscape demonstrate sophisticated understanding of their environment and sustained commitment to commemorating their dead. As a protected monument, Crug Gwyn retains archaeological value for understanding prehistoric burial practices, settlement patterns and land use in Wales during the Bronze Age and potentially earlier periods.
Crug Gwyn Round Barrow is a scheduled monument protected by Cadw under reference CM117. View the official record →
Crug Gwyn Round Barrow is a prehistoric burial mound located in Wales and protected as a scheduled monument under Cadw reference CM117.
Crug Gwyn Round Barrow dates from the prehistoric period, and is classified as a round barrow. It is one of over 32,000 scheduled monuments protected across the UK.
Crug Gwyn Round Barrow 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 CM117.
Several scheduled monuments lie within 10 km, including Ffos-y-Maen Standing Stone (4 km), Bwlch-Bychan Round Barrow (4.4 km), Defended Enclosure 300m W of Pen y Gar (4.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Crug Gwyn Round Barrow'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.
Crug Gwyn Round Barrow stands on Ashgill Rocks (Undifferentiated), bedrock that formed in the Ashgill. The rock here is mudstone, siltstone and sandstone.