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Cefn-Isaf Burial Chamber is a prehistoric chambered tomb located in Wales and protected as an ancient monument under Cadw reference CN003. The site occupies bedrock formed from the Caradocian sequence, comprising mudstone, siltstone and sandstone deposits that would have provided the local building material for its construction. Like other chambered tombs of Neolithic and early Bronze Age date, this monument represents a substantial communal investment in burial architecture, with the internal chamber designed to contain multiple interments over an extended period.
The underlying geology of Caradoc Rocks would have determined both the practical possibilities for quarrying stone and the visual character of the finished structure within its landscape. Such monuments typically comprised a stone-built chamber covered by an earthen mound or cairn, oriented to align with significant celestial or landscape features. The site's construction reflects the ritual and social practices of prehistoric Wales, when communities gathered to inter their dead within a permanent, shared structure that would have served as a focus for collective memory and territorial identity across generations.
Cefn-Isaf Burial Chamber is a scheduled monument protected by Cadw under reference CN003. View the official record →
Cefn-Isaf Burial Chamber is a prehistoric chambered tomb located in Wales and protected as an ancient monument under Cadw reference CN003.
Cefn-Isaf Burial Chamber dates from the prehistoric period, and is classified as a chambered tomb. It is one of over 32,000 scheduled monuments protected across the UK.
Cefn-Isaf Burial Chamber 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 CN003.
Several scheduled monuments lie within 10 km, including Capel Gallt-Coed (1.4 km), Ystum-Cegid Burial Chamber (1.6 km), Standing Stone N of Bettws Fawr (1.9 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Cefn-Isaf Burial Chamber'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.
Cefn-Isaf Burial Chamber stands on Caradoc Rocks (Undifferentiated), bedrock that formed in the Caradocian. The rock here is mudstone, siltstone and sandstone.