Fort, Lisnaguiveragh, Co. Monaghan

What looks from a distance like a slight rise in a field is, on closer inspection, a ringfort, one of tens of thousands of such earthworks scattered across the island. Ringforts were typically enclosed farmsteads, built to protect a family, their livestock, and their status. This one at Lisnaguiveragh measures roughly forty metres across, defined by an overgrown earthen bank that still stands nearly two metres high on its outer face, with a fosse, a defensive ditch, running around the outside.

The details preserved in survey records give a sense of just how carefully these sites were engineered. The bank varies between four and six and a half metres in width, and the fosse on the south-western side retains a base width of two and a half metres, though much of the outer ditch has since been re-cut and pressed into service as a field drain, which is a common fate for such features on agricultural land. The enclosure slopes downward about three metres towards the north-east, a topographical choice that would have aided drainage and visibility. The original entrance survives on the eastern side, a gap two metres wide at the base with a causeway, a raised crossing over the fosse, still just visible at half a metre in height. The place name itself, Lisnaguiveragh, contains the Irish word lios, meaning a fort or enclosure, which suggests this landscape feature was significant enough to anchor local nomenclature for centuries.