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Tywyn-y-Parc Promontory Fort is a prehistoric defensive enclosure positioned on a coastal promontory in Wales. The fort exploits its natural setting on the Tremadoc metasedimentary bedrock, using the steep cliffs and rocky headland as natural defences. This geological foundation of Upper Cambrian age provides the fort with formidable natural barriers on multiple sides, requiring artificial fortification only across the narrower landward approach. The site's location on these ancient sedimentary rocks demonstrates the prehistoric inhabitants' pragmatic choice of terrain for settlement and defence.
Promontory forts of this type typically date to the Bronze Age or Iron Age, with occupation potentially extending across several centuries. The fort's design reflects standard defensive principles: occupants could exploit the elevated position and rocky terrain for surveillance and protection whilst maintaining access to coastal resources. The metasedimentary bedrock beneath the site is extremely hard and weathered, creating naturally rugged conditions that would have strengthened the fort's position.
The monument is protected by Cadw, the Welsh Historic Monuments service, under reference AN049. This protection ensures the preservation of this important prehistoric site for future study and public access. The fort remains a significant example of how prehistoric communities adapted settlement strategies to their local landscape, integrating natural geological features with constructed defences to create secure coastal strongholds.
Tywyn-y-Parc Promontory Fort is a scheduled monument protected by Cadw under reference AN049. View the official record →
Tywyn-y-Parc Promontory Fort is a prehistoric defensive enclosure positioned on a coastal promontory in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference AN049.
Tywyn-y-Parc Promontory Fort dates from the prehistoric period, and is classified as a promontory fort- coastal. It is one of over 32,000 scheduled monuments protected across the UK.
Tywyn-y-Parc Promontory Fort 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 AN049.
Several scheduled monuments lie within 10 km, including St Dwynwen's Church (2.9 km), Trwyn Du round cairn (3.4 km), Hendai Medieval Farmstead (3.9 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Tywyn-y-Parc Promontory Fort'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.
Tywyn-y-Parc Promontory Fort stands on Upper Cambrian, Including Tremadoc, bedrock that formed in the Tremadocian. The rock here is metasedimentary rock.