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# Crannog
A crannog is an artificial island dwelling constructed in shallow water, typically consisting of a timber-built structure set upon a foundation of stones and organic material. This example, located in Fermanagh, Northern Ireland, dates to the early Christian period and represents a settlement type that flourished from the Iron Age through the medieval period in Ireland and Scotland. Crannogs offered defensive advantages and access to freshwater fish stocks, making them practical choices for communities in the landscape around Lough Erne and its tributaries.
The site sits above bedrock of the Tyrone Group, comprising limestone, mudstone, sandstone and siltstone with subordinate deposits of chert, coal and conglomerate formed during the Visean period of the Carboniferous. This geology would have influenced the availability of construction stone and the character of the surrounding landscape that shaped settlement patterns in this region.
The crannog is protected under the Historic Environment Division's designation 9357, recognising its archaeological significance as evidence of early Christian occupation and domestic life. The waterlogged conditions typical of crannog sites often preserve organic materials exceptionally well, providing rare insight into the material culture and economy of early medieval communities in Ulster.
Crannog is a scheduled monument protected by Department for Communities NI under reference 9357. View the official record →
# Crannog A crannog is an artificial island dwelling constructed in shallow water, typically consisting of a timber-built structure set upon a foundation of stones and organic material. It is designated a Scheduled Ancient Monument by DfC Northern Ireland (NISMR) under reference 9357.
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 9357.
Several scheduled monuments lie within 10 km, including Sweat house (3.5 km), Possible barrow (4.2 km), Fionn maccool's finger-stone, fion maccumhall's finger-stone, fionn maccool's finger-post. two standing stones (5.7 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 Tyrone Group, bedrock that formed in the Visean. The rock here is limestone, mudstone, sandstone and siltstone, with subordinate chert, coal and conglomerate.