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Graiglas Barrow is a prehistoric round barrow situated in Wales on bedrock of Upper Cambrian metasedimentary rock, including Tremadoc formations laid down during the Tremadocian period. This Palaeozoic geology gives the site its distinctive character, with ancient slate and mudstone underlying the earthwork. The barrow is scheduled and protected by Cadw, the Welsh Historic Monuments service, under reference AN112, reflecting its importance as a record of early burial practice in Wales.
Round barrows are typically Bronze Age monuments, though some belong to the late Neolithic period, constructed as burial mounds for the dead of high status within their communities. Their distribution across the Welsh landscape reflects patterns of settlement and land use in prehistory. Graiglas Barrow's survival to the present day, despite the passage of millennia and subsequent land use, makes it a significant archaeological asset.
The monument's protection ensures that its earthwork form and any buried deposits remain available for archaeological study and public understanding. Such barrows, when excavated or surveyed systematically, have yielded evidence of burial practices, grave goods, and the beliefs of the people who built them, providing crucial insights into the social structures and worldviews of prehistoric Wales.
Graiglas Barrow is a scheduled monument protected by Cadw under reference AN112. View the official record →
Graiglas Barrow is a prehistoric round barrow situated in Wales on bedrock of Upper Cambrian metasedimentary rock, including Tremadoc formations laid down during the Tremadocian period. It is designated a Scheduled Ancient Monument by Cadw under reference AN112.
Graiglas 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.
Graiglas 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 AN112.
Several scheduled monuments lie within 10 km, including Din Dryfol Chambered Tomb (3.1 km), Henblas Burial Chamber (3.1 km), Malltraeth Yard Standing Stone (5.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Graiglas 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.
Graiglas Barrow stands on Upper Cambrian, Including Tremadoc, bedrock that formed in the Tremadocian. The rock here is metasedimentary rock.