Enclosure, Lackafinna, Co. Mayo
Co. Mayo |
Enclosures
Beneath a level pasture in Lackafinna, County Mayo, a circular enclosure lies completely invisible to anyone standing in the field.
There is nothing to see, no raised earthwork, no scatter of stone, no dip in the ground. The site reveals itself only when viewed from the air, where a cropmark, the faint differential in how grass or grain grows above buried features, traces out the ghost of a circular form pressed into the soil.
The enclosure was identified from an aerial photograph taken by the Geological Survey of Ireland, and is thought to be possibly a ringfort. Ringforts, which were typically circular enclosures defined by one or more earthen banks and ditches, were the most common form of rural settlement in early medieval Ireland, used as farmsteads by families of varying social rank. Thousands survive as visible earthworks across the Irish countryside, but many others, like this one, have been levelled entirely by centuries of ploughing and agricultural activity, leaving no surface trace whatsoever. That the circular form is still legible from the air at all is largely down to the buried archaeology continuing to affect soil moisture and nutrient levels above it, which in turn influences how vegetation grows across the site.