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Llyn Du Round Barrow is a prehistoric round barrow situated in Wales, constructed upon Dinantian bedrock of limestone, sandstone and argillaceous rocks that underlie the region. The barrow belongs to a tradition of burial monuments that span the Neolithic and Bronze Age periods, when earthen or stone-built mounds were raised to commemorate the dead and mark significant territorial locations across the British landscape. Such monuments commonly served as focal points for communities, their prominent profiles visible across the surrounding countryside.
The Dinantian limestone geology of the locality would have presented particular challenges and opportunities for the barrow's construction. Local stone could have been incorporated into the monument's structure, whilst the underlying bedrock influenced both the selection of the site and the practical methods employed in its building. The monument's preservation reflects the durable nature of such earthworks when situated on stable ground.
Llyn Du Round Barrow is protected as a scheduled monument under Cadw, the Welsh Historic Monuments service, under reference FL189. This designation recognises its significance as a surviving example of prehistoric burial practice and its contribution to understanding the settlement patterns and ritual landscapes of early Wales. The barrow remains an important archaeological resource despite the passage of millennia since its construction.
Llyn Du Round Barrow is a scheduled monument protected by Cadw under reference FL189. View the official record →
Llyn Du Round Barrow is a prehistoric round barrow situated in Wales, constructed upon Dinantian bedrock of limestone, sandstone and argillaceous rocks that underlie the region. It is designated a Scheduled Ancient Monument by Cadw under reference FL189.
Llyn Du 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.
Llyn Du 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 FL189.
Several scheduled monuments lie within 10 km, including Bron Fadog Enclosure (3.1 km), Round Barrow 180m E of Mwccwd (5.4 km), Round Barrow 135m SE of Lodge Farm (5.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Llyn Du 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.
Llyn Du Round Barrow stands on Dinantian Rocks (Undifferentiated), bedrock that formed in the Mississippian. The rock here is limestone with subordinate sandstone and argillaceous rocks.