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Crannog at Fermanagh is a rare example of an early Christian artificial island dwelling, situated on bedrock of the Tyrone Group formation. This distinctive geology—comprising limestone, mudstone and sandstone laid down during the Visean period—underlies the bogland where the crannog was constructed. The monument is protected by the Historic Environment Division under reference 10270.
Crannogs were timber-built settlements erected on lake margins or shallow water, their artificial islands created by piling stones, timber and other materials to form habitable platforms. This particular example dates to the early Christian period, when such dwellings remained in use across Ireland despite evolving settlement patterns elsewhere. The soft waterlogged conditions around the site have preserved organic remains that would normally decay, offering rare insight into early Christian domestic life and construction techniques.
The crannog sits within Fermanagh's characteristic landscape of drumlins and water bodies, positioned at grid reference H3236042850. Its survival in this well-documented archaeological region reflects the persistent appeal of water-based settlement for early Christian communities, who valued both the practical advantages of island life and its cultural significance. The monument remains an important record of settlement choices and building practices in early medieval Ireland.
Crannog is a scheduled monument protected by Department for Communities NI under reference 10270. View the official record →
Crannog at Fermanagh is a rare example of an early Christian artificial island dwelling, situated on bedrock of the Tyrone Group formation. It is designated a Scheduled Ancient Monument by DfC Northern Ireland (NISMR) under reference 10270.
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 10270.
Several scheduled monuments lie within 10 km, including Two burnt mounds/ cooking places (fulachta fiadh) (6.5 km), Platform rath (6.5 km), Lisnagole. platform rath (6.8 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 Tyrone Group, bedrock that formed in the Visean. The rock here is limestone, mudstone, sandstone and siltstone, with subordinate chert, coal and conglomerate.