At Knockmoylan in County Kilkenny, groundwork ahead of the N9/N10 Kilcullen to Waterford Road Improvement Scheme in 2010 exposed the ghost of a medieval field system, two conjoined linear boundary ditches that had quietly survived beneath the soil while the landscape above them was repeatedly reploughed, hedged, and reorganised. What makes the site quietly odd is that the medieval ditches follow very nearly the same alignment as the field boundaries that surround them today, suggesting a continuity of land division stretching back seven centuries or more.

The excavation, carried out under licence in 2010, also turned up an L-shaped drain, a shallow pit, and a single post-hole, the kind of modest assemblage that speaks to working agricultural land rather than anything ceremonial or defensive. Three pottery sherds recovered from the site represent two separate vessels and date broadly to the 13th or 14th century AD, placing the field system within the medieval period, when much of lowland Kilkenny was being actively farmed and managed under Anglo-Norman influence. Pottery of this period in Ireland is often coarse, locally produced ware used for everyday storage and cooking, so even these fragments carry a faint domestic weight. The fact that the medieval features mirror the orientation of the surrounding modern field pattern suggests that whoever first dug these boundary ditches was working with the same logic of the land that farmers in the area have followed ever since.