Field system, Ballycorus, Co. Dublin
Co. Dublin |
Ritual/Ceremonial
On the lower north-western slopes of Carrickgollogan Mountain in south County Dublin, there is an ancient field system that cannot actually be seen.
Stand at the site and you will find nothing obvious underfoot, no visible banks or ditches, no trace of the boundaries that once divided this ground into organised agricultural plots. The remains exist, but they exist at a level below ordinary perception, readable only from above or through the careful eyes of cartographers and antiquarians.
What we know of the site comes largely from the Ordnance Survey's six-inch map of 1843, which records linear earthworks in this area associated with a nearby ringfort. A ringfort, for those unfamiliar with the term, is a circular enclosure, usually defined by one or more earthen banks, that served as a farmstead during the early medieval period in Ireland, roughly between the fifth and twelfth centuries. The 1843 mapping was accompanied by the OS Memoranda, a body of field notes compiled by surveyors as they moved through the country, and a sketch plan preserved in those memoranda appears to show the ringfort alongside its associated field system, a layout interpreted and referenced by O'Flanagan in 1927. Together, the cartographic evidence and the antiquarian record suggest a small farming landscape, the enclosed fields radiating outward from a defended homestead, overlooking what is now the Loughlinstown river valley. The compilation of the site record was carried out by Geraldine Stout and Padraig Clancy.
The location on the lower slopes of Carrickgollogan places the field system within a broader upland landscape on the southern fringe of the Dublin Mountains, where the ground opens toward the valley below. Because the site is not visible at ground level, there is little to orient a visitor in any conventional sense. The value here is largely in the knowing, in understanding that this particular hillside once held a coherent, bounded agricultural world that has since sunk beneath the surface of the grass. The 1843 OS six-inch maps, freely available through the historical mapping viewer at osi.ie, allow anyone to trace the earthworks as the surveyors recorded them, which may be the closest a visitor can come to seeing what was once there.