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Caer Engan is a prehistoric hillfort situated in Wales and protected by Cadw under reference CN148. The monument occupies a position on bedrock of Lower Cambrian age, comprising sandstone and conglomerate strata that were laid down during the Early Cambrian period over 500 million years ago. This geological foundation of interbedded sedimentary rocks would have provided both the natural defensive advantages and the stone-working opportunities that characterise hillforts of this period.
Hillforts of this type represent a significant phase of Iron Age settlement and defence across Britain and Wales, typically enclosed by substantial earthwork ramparts and ditches. The positioning of Caer Engan on Lower Cambrian bedrock reflects the builders' practical understanding of their landscape, exploiting both the topography and the geology to create fortified settlement. The bedrock geology of the immediate area would have influenced both the construction methods available and the long-term stability of the earthwork defences.
Today, Caer Engan remains an important archaeological monument, maintained and recorded as part of Wales's heritage. Its survival on the Lower Cambrian geology of the region provides valuable evidence for understanding prehistoric settlement patterns and the relationship between ancient communities and their geological environment across this part of Wales.
Caer Engan is a scheduled monument protected by Cadw under reference CN148. View the official record →
Caer Engan is a prehistoric hillfort situated in Wales and protected by Cadw under reference CN148.
Caer Engan dates from the prehistoric period, and is classified as a hillfort. It is one of over 32,000 scheduled monuments protected across the UK.
Caer Engan 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 CN148.
Several scheduled monuments lie within 10 km, including Llystyn Gwyn Inscribed Stone (7.1 km), Enclosed Hut Group North West of Cwm Farm (7.9 km), Enclosed Hut Group North-East of Llystyn Uchaf (8.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Caer Engan'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.
Caer Engan stands on Lower Cambrian Rocks (Undifferentiated), bedrock that formed in the Early Cambrian. The rock here is sandstone and conglomerate, interbedded.