© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw
Gwern y Cleppa Burial Chamber is a prehistoric chambered long barrow situated in Wales. The monument stands upon bedrock composed of Lower Devonian rocks, a sequence of mudstone, siltstone and sandstone laid down during the Early Devonian period. This geology has shaped the local landscape and the materials available to its builders.
The barrow represents a characteristic funerary monument of Neolithic or Early Bronze Age Wales, constructed to serve as a communal burial place. Chambered long barrows of this type typically contain stone-built internal chambers accessed by a passage, all covered by an elongated earthen mound. Such monuments served their communities across several generations, with remains of multiple individuals deposited over considerable time periods.
The site is protected as a scheduled monument by Cadw, the Welsh Historic Monuments organisation, under reference MM022. This designation recognises its archaeological significance and ensures its preservation for future research and understanding of prehistoric Welsh funerary practices and settlement patterns.
Gwern y Cleppa Burial Chamber is a scheduled monument protected by Cadw under reference MM022. View the official record →
Gwern y Cleppa Burial Chamber is a prehistoric chambered long barrow situated in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference MM022.
Gwern y Cleppa Burial Chamber dates from the prehistoric period, and is classified as a chambered long barrow. It is one of over 32,000 scheduled monuments protected across the UK.
Gwern y Cleppa 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 MM022.
Several scheduled monuments lie within 10 km, including Coed y Defaid Camp (1.2 km), Pen-y-Lan Camp (1.8 km), Croes Carn Einion Roman Site (2.3 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Gwern y Cleppa 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.
Gwern y Cleppa Burial Chamber stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is mudstone, siltstone and sandstone.