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Llwyn du Parc cairn is a prehistoric cairn circle located in Wales and protected by Cadw under reference ME240. The monument sits upon Lower Cambrian bedrock of sandstone and conglomerate, laid down during the Early Cambrian period and now exposed as undifferentiated strata. This geological foundation of interbedded sedimentary rock provided the raw materials for the cairn's construction.
Cairn circles of this type are among Wales's most distinctive prehistoric monuments, typically comprising stone heaps arranged in circular or near-circular patterns. Their precise chronology and function remain subjects of archaeological study, though they frequently cluster in upland regions and are often associated with ritual or burial practice during the Neolithic and Bronze Age periods.
The monument's survival to the present day reflects both the durability of stone construction and the relative remoteness of many Welsh upland locations. Cadw's protection ensures that Llwyn du Parc cairn remains available for future study and continues to form part of the archaeological record of prehistoric Wales, contributing to our understanding of early settlement, land use and ceremonial practice in the region.
Llwyn du Parc cairn is a scheduled monument protected by Cadw under reference ME240. View the official record →
Llwyn du Parc cairn is a prehistoric cairn circle located in Wales and protected by Cadw under reference ME240.
Llwyn du Parc cairn dates from the prehistoric period, and is classified as a cairn circle. It is one of over 32,000 scheduled monuments protected across the UK.
Llwyn du Parc 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 ME240.
Several scheduled monuments lie within 10 km, including Bron-Llety-Ifan cairns and cup-marked rock (7.2 km), Fairbourne Anti-invasion Defences (7.3 km), Enclosure & Settlement 400m East of Cyfannedd Fawr (7.7 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Llwyn du Parc 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.
Llwyn du Parc cairn stands on Lower Cambrian Rocks (Undifferentiated), bedrock that formed in the Early Cambrian. The rock here is sandstone and conglomerate, interbedded.