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Craig-y-Rhiwarth Hillfort is a prehistoric fortified settlement occupying a commanding position in Wales. The site exploits the natural defensive properties of its location, built upon Dinantian limestone bedrock interspersed with sandstone and argillaceous strata. This geology would have provided both suitable material for construction and a naturally elevated platform, affording views across the surrounding landscape and control of approach routes. The hillfort's strategic siting reflects the Iron Age and Bronze Age practice of placing defended settlements on high ground with good visibility.
The fortification comprises substantial earthwork defences, characteristic of Welsh hillforts, which would have enclosed domestic and storage structures within their perimeter. The massive blocks of carboniferous limestone underlying the site may have been incorporated into defensive walls or utilised as raw material for cairns and structures, a practical response to the local geology by its builders.
The monument is protected as a scheduled ancient monument under Cadw, the Welsh heritage organisation, registered as BR246. This designation recognises its archaeological significance and ensures its preservation for future study and public access. Craig-y-Rhiwarth remains an important record of prehistoric settlement patterns and defensive strategies in Wales, offering insight into how communities exploited and adapted to their natural environment during the later prehistoric period.
Craig-y-Rhiwarth Hillfort is a scheduled monument protected by Cadw under reference BR246. View the official record →
Craig-y-Rhiwarth Hillfort is a prehistoric fortified settlement occupying a commanding position in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference BR246.
Craig-y-Rhiwarth 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.
Craig-y-Rhiwarth 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 BR246.
Several scheduled monuments lie within 10 km, including Lefel Fawr Coal Adit (4.5 km), Coelbren Fort (5.2 km), Section of Road NE of Coelbren Fort (5.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Craig-y-Rhiwarth 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.
Craig-y-Rhiwarth Hillfort stands on Dinantian Rocks (Undifferentiated), bedrock that formed in the Mississippian. The rock here is limestone with subordinate sandstone and argillaceous rocks.