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Mynydd Bach round cairn is a prehistoric round barrow located in Wales and protected by Cadw under reference AN149. The monument sits upon bedrock of Precambrian mica schist, metamorphic stone formed over 540 million years ago during the earth's most ancient geological period. This ancient foundation supports a burial mound constructed during the Bronze Age, when such round cairns served as communal or individual burial monuments across the British uplands.
The cairn's location on high ground over bedrock composed of metamorphic mica demonstrates the Bronze Age builders' choice of prominent landscape positions for their funerary structures. Round barrows of this type typically contain central burials, sometimes accompanied by grave goods, though the specific contents and condition of Mynydd Bach remain recorded in archaeological documentation.
The monument's survival on Welsh upland terrain reflects the persistence of these stone structures across millennia. As an earthwork and stone feature unencumbered by later settlement or cultivation, the cairn preserves evidence of prehistoric burial practice and the ritual significance Bronze Age communities attached to elevated locations within their landscape.
Mynydd Bach round cairn is a scheduled monument protected by Cadw under reference AN149. View the official record →
Mynydd Bach round cairn is a prehistoric round barrow located in Wales and protected by Cadw under reference AN149.
Mynydd Bach round cairn 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.
Mynydd Bach round cairn 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 AN149.
Several scheduled monuments lie within 10 km, including Barclodiad y Gawres Chambered Tomb (0.1 km), Pen-Sieri Inscribed Stone (0.6 km), Pont Aberffraw (3.3 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Mynydd Bach round cairn'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.
Mynydd Bach round cairn stands on Precambrian mica, bedrock that formed in the Precambrian. The rock here is mica schist; undifferentiated metamorphic.