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Skomar Defended Enclosure is a prehistoric promontory fort occupying a coastal headland in Wales. The site exploits its naturally defensible position, with the sea forming a natural barrier on three sides whilst a rock-cut ditch and bank system protect the landward approach. This type of coastal fortification is characteristic of the later prehistoric period in Wales and demonstrates how communities positioned settlements to command maritime access and exploit coastal resources.
The enclosure sits upon Dinantian bedrock comprising limestone interbedded with subordinate sandstone and argillaceous rocks, geology that has shaped the dramatic coastal topography and would have influenced the fort's construction. The hard limestone provided material for rampart construction and the foundation for the defensive ditch, which could be cut to considerable depth. This solid bedrock also ensured the fort's structural integrity and stability across centuries of use.
The site is protected under Cadw reference PE545, recognising its archaeological and historical importance as evidence of prehistoric settlement and defensive strategy. Promontory forts of this kind served multiple functions as refuge structures, territorial markers, and centres of local authority. The monument remains a significant resource for understanding how prehistoric Welsh communities organised their settlements and exploited the maritime environment.
Skomar Defended Enclosure is a scheduled monument protected by Cadw under reference PE545. View the official record →
Skomar Defended Enclosure is a prehistoric promontory fort occupying a coastal headland in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference PE545.
Skomar Defended Enclosure 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.
Skomar 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 PE545.
Several scheduled monuments lie within 10 km, including The Old Palace, Lydstep (0.8 km), Old Castle Head Promontory Fort (1.3 km), Radar Station, Old Castle Head (1.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Skomar 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.
Skomar Defended Enclosure stands on Dinantian Rocks (Undifferentiated), bedrock that formed in the Mississippian. The rock here is limestone with subordinate sandstone and argillaceous rocks.