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Afon Prysor cairn to NW of is a prehistoric round cairn located in Wales and protected by Cadw under reference ME246. The monument sits upon bedrock of Upper Cambrian age, specifically deposits from the Tremadocian period, comprising mudstone, siltstone and sandstone. These ancient geological foundations underlie the cairn's construction, which would have been built by prehistoric communities who inhabited the Welsh landscape long after the stone bedrock itself had formed.
Round cairns of this type represent significant funerary and ceremonial monuments, typically erected during the Bronze Age, though construction continued across several prehistoric periods. The circular stone mound at Afon Prysor would have served as a focal point for burial practices and ritual activity, with its prominent position in the landscape making it visible to surrounding communities. The monument's survival to the present day reflects both its robust construction and the protective designation it has received.
The site's situation upon Tremadocian geology, with its combination of softer mudstones and siltstones interspersed with sandstone, would have influenced the character of local stone available for the cairn's construction. This particular geological setting distinguishes the monument's physical context within the broader landscape of Welsh prehistoric settlement and burial practices.
Afon Prysor, cairn to NW of is a scheduled monument protected by Cadw under reference ME246. View the official record →
Afon Prysor cairn to NW of is a prehistoric round cairn located in Wales and protected by Cadw under reference ME246.
Afon Prysor, cairn to NW of 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.
Afon Prysor, cairn to NW of 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 ME246.
Several scheduled monuments lie within 10 km, including Castell Prysor (2.6 km), Roman Road extending SE 650m from Llyn Hiraethlyn toward Glasgoed (3.4 km), Roman Practice Camps 190m W of Llyn Hiraethlyn (3.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Afon Prysor, cairn to NW of'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.
Afon Prysor, cairn to NW of stands on Upper Cambrian, Including Tremadoc, bedrock that formed in the Tremadocian. The rock here is mudstone, siltstone and sandstone.