Moated site, Knocknakillew, Co. Sligo
In the gently rolling pastures of Knocknakillew, County Sligo, a curious rectangular earthwork rises from the poorly drained landscape.
Moated site, Knocknakillew, Co. Sligo
This moated site, measuring roughly 24 metres from northeast to southwest and 13 metres across, stands about 1.5 metres above the surrounding fields. The raised platform sits atop a natural elevation, its flat summit defined by steep scarps on three sides and a distinctive defensive ditch on the fourth. The northeastern boundary features a particularly impressive fosse; a trench 4.7 metres wide that narrows to 2.2 metres at its base and plunges 1.35 metres deep. This defensive feature follows the line of a modern field drain but is considerably wider, suggesting its original military purpose.
The earthwork’s defences vary around its perimeter, adapting cleverly to the natural topography. On the southeastern side, the scarp incorporates a broad natural slope spanning about 13 metres, whilst the southwestern edge drops away to a low ridge that extends southward as a natural continuation of the elevated ground. The northwestern scarp, approximately 5 metres wide, descends into an area of wet, boggy ground that may conceal another defensive ditch beneath its waterlogged surface. Aerial photographs from the Irish Archaeological Survey reveal the site’s original complexity, showing two enclosing banks with an intervening fosse that aren’t immediately obvious from ground level.
The interior of this medieval fortification forms a relatively narrow, level platform that rises slightly at its southwestern end, making use of the natural high ground beneath. Just 50 metres to the northeast lies what may be a fulacht fia, an ancient cooking site, suggesting this location has been significant to local communities for millennia. First formally documented in the Archaeological Inventory of County Sligo in 2005, this moated site represents a typical example of Anglo-Norman defensive architecture, likely dating from the 13th or 14th century when such fortified homesteads dotted the Irish countryside.