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McArt's Fort is a prehistoric promontory fort situated in Belfast, Northern Ireland. The monument occupies a defensible headland position, exploiting the natural topography to create a strong fortified settlement. Promontory forts of this type typically date to the Iron Age, though some may have earlier origins, and represent a distinctive form of fortified habitation found throughout the Atlantic regions of Britain and Ireland. The fort's defensive strategy relied upon the natural cliffs and steep terrain of the promontory itself, supplemented by artificial earthworks across the narrow neck of land connecting the headland to the mainland.
The bedrock geology beneath McArt's Fort comprises Palaeogene extrusive rocks, specifically mafic lavas and tuffs formed during volcanic activity in the early Tertiary period. This basaltic bedrock, some 55–60 million years old, would have shaped both the fort's natural defences and the practical challenges of its construction. The solid volcanic foundation provided a stable platform for habitation and fortification works.
McArt's Fort is protected as a scheduled monument by the Historic Environment Division under reference 4301, recognising its significance as evidence of prehistoric settlement strategies and Iron Age society in northern Ireland. The fort remains an important archaeological site within Belfast's landscape heritage.
Mcart's fort. promontory fort is a scheduled monument protected by Department for Communities NI under reference 4301. View the official record →
McArt's Fort is a prehistoric promontory fort situated in Belfast, Northern Ireland. It is designated a Scheduled Ancient Monument by DfC Northern Ireland (NISMR) under reference 4301.
Mcart's fort. promontory fort dates from the prehistoric period, and is classified as a promontory fort. It is one of over 32,000 scheduled monuments protected across the UK.
Mcart's fort. promontory fort 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 4301.
Several scheduled monuments lie within 10 km, including Clarendon dock (southerly), ritchies dock. graving dock (4.9 km), Red brick chimney stack (ihr no.10370) (5.4 km), Chimney stack - ihr 010369 (5.4 km).
This page is just one thread. A full Aubrey report pulls together 14 strands of Mcart's fort. 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.
Mcart's fort. promontory fort stands on Unnamed Extrusive Rocks, Palaeogene, bedrock that formed in the Paleogene. The rock here is mafic lava and mafic tuff.