© Mapbox · © OpenStreetMap contributors · Boundary data © DfC Northern Ireland (NISMR)
The Cookstown Crannog is a Early Christian artificial island settlement situated in County Tyrone, Northern Ireland. Crannogs were defensive or prestige dwellings built on freshwater lakes and boggy ground, consisting of a timber-framed platform anchored within the water or waterlogged deposits. This example rests above bedrock of the Tyrone Group, a Visean-age formation comprising limestone, mudstone, sandstone and siltstone interspersed with chert, coal and conglomerate—geology that would have influenced both the site's hydrology and the constructional materials available to its builders.
The settlement dates to the Early Christian period, a time when crannogs served as secure homesteads for high-status families or monastic communities across Ireland and Scotland. The substantial effort required to build such structures, combined with their naturally defended positions, suggests the Cookstown Crannog housed an important household or had strategic value within its local landscape.
The monument is protected as an archaeological site of national significance under Historic Environment Division reference 15317. Though now approached across dry ground, the original crannog's survival depends on waterlogged conditions that preserve organic materials including timber and food remains. The site remains an important record of Early Christian settlement patterns and construction techniques in the northern Irish landscape.
Crannog is a scheduled monument protected by Department for Communities NI under reference 15317. View the official record →
The Cookstown Crannog is a Early Christian artificial island settlement situated in County Tyrone, Northern Ireland. It is designated a Scheduled Ancient Monument by DfC Northern Ireland (NISMR) under reference 15317.
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 15317.
Several scheduled monuments lie within 10 km, including Colliery chimney - ihr 05128 (2.5 km), Fireclay works chimneys (4) - ihr 05122 (2.6 km), Standing stone (3.5 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.