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Foel Faner Defended Enclosure is a prehistoric hillfort positioned on an Ordovician to Silurian igneous outcrop in Wales. The underlying bedrock, a mafic igneous intrusion of Silurian age, rises prominently from the surrounding landscape, providing a naturally defensible location. This geological foundation shaped the site's strategic value and construction, with the exposed rock face offering both protection and quarried stone for fortification.
The enclosure demonstrates the characteristic features of Iron Age hillforts, with defensive earthworks constructed to command views across the surrounding terrain. The mafic igneous bedrock, harder and more resistant than sedimentary alternatives, would have provided stable foundations for ramparts and internal structures whilst offering natural barriers to approach. The elevated position on this distinctive geological feature made Foel Faner a stronghold of considerable tactical importance.
The site is protected by Cadw, the Welsh heritage authority, under reference ME267, ensuring its preservation for future archaeological study. The combination of prehistoric engineering and dramatic geology creates a monument that illustrates how Iron Age communities selected and exploited natural landforms for settlement and defence, integrating their fortifications with the substantial rock formations available on the Silurian igneous landscape.
Foel Faner Defended Enclosure is a scheduled monument protected by Cadw under reference ME267. View the official record →
Foel Faner Defended Enclosure is a prehistoric hillfort positioned on an Ordovician to Silurian igneous outcrop in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference ME267.
Foel Faner Defended Enclosure dates from the prehistoric period, and is classified as a enclosure - defensive. It is one of over 32,000 scheduled monuments protected across the UK.
Foel Faner Defended Enclosure 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 ME267.
Several scheduled monuments lie within 10 km, including Pentre Farm Barrow (1.7 km), Llanelltyd Bridge (1.8 km), Brithdir Roman Fort (4.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Foel Faner Defended Enclosure'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.
Foel Faner Defended Enclosure stands on Unnamed Igneous Intrusion, Ordovician To Silurian, bedrock that formed in the Silurian. The rock here is mafic igneous-rock.