© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw
Camp at Cwm Llwyd is a prehistoric hillfort sited on the Coal Measures bedrock of South Wales. The underlying geology—mudstone, siltstone, sandstone and iron-rich ferricrete of the Upper Coal Measures Formation—provided both physical foundations and exploitable mineral resources for the Iron Age community that occupied this elevated position. The ferricrete deposits in particular would have offered ready-worked stone for construction and defensive earthworks.
The fort occupies a commanding location typical of Welsh hillforts, where prominence and natural topography determined settlement placement and visibility across surrounding valleys and ridges. This strategic positioning reflects the settlement hierarchy and inter-community relationships characteristic of the late prehistoric period in Wales, when such fortified sites served as territorial centres and strongholds.
The monument is protected as a scheduled ancient monument under Cadw, the Welsh heritage conservation agency, registered as GM356. Its survival as an earthwork record preserves evidence of Iron Age settlement patterns and the relationship between communities and their landscape in the upland regions of South Wales.
Camp at Cwm Llwyd is a scheduled monument protected by Cadw under reference GM356. View the official record →
Camp at Cwm Llwyd is a prehistoric hillfort sited on the Coal Measures bedrock of South Wales. It is designated a Scheduled Ancient Monument by Cadw under reference GM356.
Camp at Cwm Llwyd dates from the prehistoric period, and is classified as a hillfort. It is one of over 32,000 scheduled monuments protected across the UK.
Camp at Cwm Llwyd 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 GM356.
Several scheduled monuments lie within 10 km, including Llangan Celtic Cross (7.5 km), Medieval Cross in Churchyard (7.5 km), Ewenni Priory (8.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Camp at Cwm Llwyd'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.
Camp at Cwm Llwyd stands on South Wales Upper Coal Measures Formation, bedrock that formed in the Westphalian. The rock here is mudstone, siltstone, sandstone, coal, ironstone and ferricrete.