© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw
Ffynnon Las Round Cairn I is a prehistoric round cairn located in Wales and protected by Cadw under reference BR294. The monument stands upon bedrock composed of Lower Devonian rocks, a mixture of sandstone and conglomerate laid down in layers during the Early Devonian period, approximately 410 to 400 million years ago. This geological foundation of interbedded sedimentary stone would have provided the raw materials available to the cairn's builders.
Round cairns of this type are typically Bronze Age burial monuments, constructed by heaping stone over a grave or cremation deposit. The stones used in their construction often derive from the immediate landscape, and at this site the local Devonian bedrock would have supplied suitable material for building. The monument's survival to the present day reflects both its robust construction and its protected status within the Welsh heritage landscape.
The cairn represents an important record of prehistoric funerary practice and settlement patterns in Wales. Such monuments are commonly found across upland and moorland areas where stone is naturally abundant and the underlying geology, as here, makes stone-working a practical undertaking. Ffynnon Las Round Cairn I contributes to our understanding of Bronze Age communities and their relationship with the Welsh landscape.
Ffynnon Las Round Cairn I is a scheduled monument protected by Cadw under reference BR294. View the official record →
Ffynnon Las Round Cairn I is a prehistoric round cairn located in Wales and protected by Cadw under reference BR294.
Ffynnon Las Round Cairn I 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.
Ffynnon Las Round Cairn I 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 BR294.
Several scheduled monuments lie within 10 km, including Pant Serthfa round cairn (7.6 km), Coed Pentwyn Hillfort (8.2 km), Clo Cadno platform cairn (8.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Ffynnon Las Round Cairn I'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.
Ffynnon Las Round Cairn I stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is sandstone and conglomerate, interbedded.