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Byrllysg is a prehistoric promontory fort situated in Meirionnydd, Wales, occupying a defensible headland position that would have commanded views across the surrounding terrain. The site is defined by its arrangement of defensive earthworks, comprising banks and ditches that cut across the promontory to create an enclosed settlement area, characteristic of Iron Age fortified settlements in Wales. Dating to the Iron Age period, the fort represents a form of defensive architecture common to upland and coastal regions of prehistoric Britain, where natural topography was enhanced with constructed ramparts to control access. The fort's inland location within Meirionnydd demonstrates the widespread distribution of such defensive sites across Wales during this period, serving functions related to territorial control, settlement protection, and potentially the management of regional resources.
Byrllysg promontory fort is a scheduled monument protected by Cadw under reference ME064. View the official record →
Byrllysg is a prehistoric promontory fort situated in Meirionnydd, Wales, occupying a defensible headland position that would have commanded views across the surrounding terrain. It is designated a Scheduled Ancient Monument by Cadw under reference ME064.
Byrllysg promontory fort 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.
Byrllysg 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 ME064.
Several scheduled monuments lie within 10 km, including Enclosed Hut Circle Settlement and Long huts E of Egryn Abbey (3.9 km), Settlement & Fields Systems above Egryn Abbey (4 km), Mynydd Egryn Ring Cairn (4.3 km).
Aubrey generates in-depth historical research for any address in the UK — drawing on scheduled monument data, Domesday records, Roman heritage, PAS finds and medieval history to reveal the complete story of a landscape.
Research the area around Byrllysg promontory fort