On the Curragh, a flat expanse of County Kildare that has served as common grazing land, military training ground, and racecourse for centuries, there is a small circular mound roughly twenty metres across that managed to attract enough attention to be mapped, classified, and then quietly ruled out as anything of historical interest. It appears on the 1941 edition of the Ordnance Survey six-inch map, but was absent from the first edition published in 1838, which suggests it came into being somewhere in the intervening century rather than having survived from the distant past.

A 1984 report by An Foras Forbartha, a state body that was responsible for physical planning and environmental research in Ireland before its dissolution, examined the mound and concluded it was not an antiquity. That is a significant finding in its own understated way. The Curragh is a landscape where genuine earthworks and archaeological features do exist, and where any unexplained rise in the ground might reasonably prompt a second look. To investigate a mound and determine it has no ancient origin places it in an interesting category: notable enough to record, unremarkable enough to dismiss. What formed it, and when, is not stated.