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Moyle Motte is a well-preserved early medieval motte and bailey earthwork crowned with fragmentary castle ruins. The mound rises prominently from the local landscape, its elevated position exploiting the underlying Palaeogene extrusive rocks which provided a naturally defensive foundation. This volcanic bedrock—composed of ancient mafic lava and tuff deposited some 60 million years ago—formed a stable base for the timber and stone fortifications that once occupied the summit.
The monument comprises a substantial earthen mound surmounted by the substantial ruins of a later stone castle, together with the flattened bailey platform typical of Norman-era fortification design. The remains testify to successive phases of occupation and architectural development across the medieval period. Souterrain remains discovered on the site suggest earlier settlement activity in this locality, indicating that the location held strategic or domestic significance before the Norman motte and bailey was constructed.
The monument lies within County Antrim's distinctive volcanic geology, and its preservation reflects the enduring character of early medieval defensive architecture in this region. Moyle Motte is protected as a scheduled monument by the Historic Environment Division of Northern Ireland under reference 600, ensuring the integrity of these substantial earthworks and their archaeological record for future study and appreciation.
Motte with castle ruins & souterrain is a scheduled monument protected by Department for Communities NI under reference 600. View the official record →
Moyle Motte is a well-preserved early medieval motte and bailey earthwork crowned with fragmentary castle ruins. It is designated a Scheduled Ancient Monument by DfC Northern Ireland (NISMR) under reference 600.
Motte with castle ruins & souterrain dates from the e.christ. period, and is classified as a motte & bailey. It is one of over 32,000 scheduled monuments protected across the UK.
Motte with castle ruins & souterrain is a Scheduled Ancient Monument, legally protected by DfC Northern Ireland (NISMR) — the body responsible for designating and safeguarding heritage sites in Ni. The official designation reference is 600.
Several scheduled monuments lie within 10 km, including Cashel with souterrain (2.3 km), Clough berragh. standing stone, enclosure & house platforms (3 km), Tullaghore crosses. crosses (2) (3.6 km).
This page is just one thread. A full Aubrey report pulls together 14 strands of Motte with castle ruins & souterrain'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.
Motte with castle ruins & souterrain stands on Unnamed Extrusive Rocks, Palaeogene, bedrock that formed in the Paleogene. The rock here is mafic lava and mafic tuff.