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Cwm-Pen-y-Benglog Camp is a prehistoric promontory fort situated in inland Wales, occupying a naturally defended position formed from Ordovician felsic tuff. This ancient volcanic rock, erupted some 480 million years ago, provides a naturally hard and resistant foundation that would have aided both the initial choice of this location and the durability of any fortifications constructed upon it. The geological prominence of the site reflects the strategic considerations of its prehistoric builders.
The camp takes advantage of its promontory setting, using the steep slopes created by the underlying geological formation to enhance natural defences. Promontory forts of this type represent a common form of Iron Age settlement in Wales, where communities fortified prominent hilltops and ridge ends with single or multiple ramparts. This particular example demonstrates how prehistoric communities exploited the landscape's inherent features to create secure strongholds.
The monument is protected by Cadw, the Welsh Historic Monuments service, under reference PE173, ensuring its preservation for future study and public access. Archaeological interest in such sites continues to reveal information about prehistoric settlement patterns, land use and the defensive strategies employed by communities in the region during the Iron Age period.
Cwm-Pen-y-Benglog Camp is a scheduled monument protected by Cadw under reference PE173. View the official record →
Cwm-Pen-y-Benglog Camp is a prehistoric promontory fort situated in inland Wales, occupying a naturally defended position formed from Ordovician felsic tuff. It is designated a Scheduled Ancient Monument by Cadw under reference PE173.
Cwm-Pen-y-Benglog Camp dates from the prehistoric period, and is classified as a promontory fort - inland. It is one of over 32,000 scheduled monuments protected across the UK.
Cwm-Pen-y-Benglog Camp 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 PE173.
Several scheduled monuments lie within 10 km, including Mynydd Crwn standing stone (8 km), Gors Fawr Stone Circle (8 km), Standing Stone 110m NW of Spring Gardens (9 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Cwm-Pen-y-Benglog Camp'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.
Cwm-Pen-y-Benglog Camp stands on Unnamed Extrusive Rocks, Ordovician, bedrock that formed in the Ordovician. The rock here is felsic tuff.