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Caer Dynnaf is a prehistoric hillfort situated in Wales and protected by Cadw under reference GM100. The site occupies a naturally elevated position underlain by bedrock of the Lias Group, a sequence of mudstone, siltstone, limestone and sandstone deposited during the Aalenian period of the Jurassic. This solid geological foundation would have provided the hillfort's builders with a stable base and useful stone for construction.
The hillfort exemplifies the defensive settlements that emerged across Wales during the Iron Age, typically positioned to command views of surrounding terrain and approach routes. The Lias bedrock exposed at surface would have offered ready access to building stone, whilst the sloping topography characteristic of such geological formations would have aided natural drainage within the enclosure.
As a Cadw-protected monument, Caer Dynnaf preserves evidence of prehistoric settlement strategy and engineering knowledge. The site's survival reflects the enduring archaeological importance of such hillforts to understanding Iron Age communities in Wales, their territorial organisation and responses to the landscape they inhabited.
Caer Dynnaf hillfort is a scheduled monument protected by Cadw under reference GM100. View the official record →
Caer Dynnaf is a prehistoric hillfort situated in Wales and protected by Cadw under reference GM100.
Caer Dynnaf hillfort 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 Dynnaf hillfort 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 GM100.
Several scheduled monuments lie within 10 km, including West Orchard Manor House (6.6 km), Deserted Medieval Village North East of Rock Farm (7.2 km), Castle Ditches Camp (7.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Caer Dynnaf hillfort'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 Dynnaf hillfort stands on Lias Group, bedrock that formed in the Aalenian. The rock here is mudstone, siltstone, limestone and sandstone.