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Crannog is an early Christian artificial island settlement located near Lisburn in County Antrim, Northern Ireland. Built upon bedrock of Llandovery mudstone, chert and smectite-claystone, the crannog represents a form of lakeside habitation typical of medieval Ireland. These structures were engineered by driving timber piles and constructing wooden platforms in shallow water, creating defensive and domestic spaces that combined practical engineering with the natural geology of waterlogged sites.
The crannog's location in the drumlin landscape of central Ulster would have placed it within an environment of numerous small lakes and waterways, common to the region's glacial topography. Such settlements served as residences for families of status and wealth during the early Christian period, offering natural protection and demonstrating the inhabitant's command of resources and technical knowledge. The site's archaeological value lies in its potential to reveal evidence of domestic life, craft practices and subsistence during this formative period of Irish history.
The monument is protected by the Historic Environment Division of the Department for Communities, registered under reference number 7069. Its survival, preserved by the anaerobic conditions of the wetland environment, makes it an important record of early medieval settlement patterns and timber construction techniques in Ireland.
Crannog is a scheduled monument protected by Department for Communities NI under reference 7069. View the official record →
Crannog is an early Christian artificial island settlement located near Lisburn in County Antrim, Northern Ireland. It is designated a Scheduled Ancient Monument by DfC Northern Ireland (NISMR) under reference 7069.
Crannog dates from the e.christ. period, and is classified as a crannog. It is one of over 32,000 scheduled monuments protected across the UK.
Crannog 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 7069.
Several scheduled monuments lie within 10 km, including Large hilltop enclosure (1.8 km), Giants' graves. court tomb (2.6 km), Counterscarp rath (2.7 km).
This page is just one thread. A full Aubrey report pulls together 14 strands of Crannog'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.
Crannog stands on Crawford Group And Moffat Shale Group (Undifferentiated), bedrock that formed in the Llandovery. The rock here is mudstone, chert and smectite-claystone.