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Pegwn Bach Round Barrow is a prehistoric round cairn located in Wales and protected by Cadw under reference MG126. The monument comprises a mound of stone and earth constructed over bedrock of Wenlock Rocks, the interbedded sandstone and conglomerate formation that underlies the site. This underlying geology has influenced both the availability of building materials and the drainage characteristics of the barrow's position in the landscape. Round cairns of this type were typically erected during the Bronze Age as burial monuments and territorial markers on the higher ground and upland margins where stone naturally outcrops.
The mound form reflects construction practices adapted to the local topography and stone resources of the Wenlock formation. The mixed bedrock of sandstone and conglomerate would have provided both larger stones for structural integrity and smaller fragments for infill, materials suited to cairn construction. Such monuments often occupied prominent landscape positions that remain visible across considerable distances, serving both ceremonial and practical functions for prehistoric communities.
Pegwn Bach Round Barrow is a scheduled monument protected by Cadw under reference MG126. View the official record →
Pegwn Bach Round Barrow is a prehistoric round cairn located in Wales and protected by Cadw under reference MG126.
Pegwn Bach Round Barrow dates from the prehistoric period, and is classified as a round cairn. It is one of over 32,000 scheduled monuments protected across the UK.
Pegwn Bach 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 MG126.
Several scheduled monuments lie within 10 km, including Castell y Garn (7 km), Bronze Age round barrow NW of Glan-marteg (7 km), Round Barrows 400m NNW of Beili Hwlyn (7.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Pegwn Bach 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.
Pegwn Bach Round Barrow stands on Wenlock Rocks (Undifferentiated), bedrock that formed in the Wenlock. The rock here is sandstone and conglomerate, interbedded.