Beneath a tilled field in Kilmead, County Kildare, a circle roughly thirty metres across betrays itself only from the air. No mound, no stone, no visible earthwork marks the spot at ground level; what survives is a cropmark, the faint but legible trace of a back-filled fosse. A fosse is simply a ditch, dug in antiquity to define and defend a circular enclosure, then later filled in, its slightly different soil composition still coaxing crops to grow at a different rate from the surrounding field. From above, that differential growth draws the outline of something that was once, in all probability, a settlement, a farmstead, or a place of local significance.

The site came to attention through aerial imagery, observed on a satellite view and communicated by P. Reid. What makes the discovery quietly interesting is its relationship to its immediate surroundings: a second, larger enclosure lies just to the south-east. Two enclosures in such proximity are not uncommon in the Irish midlands and east, where ringfort-type sites, many dating to the early medieval period roughly 500 to 1200 AD, were sometimes established in clusters, possibly reflecting family groupings or successive phases of settlement on the same ground. Whether this pair follows that pattern is unknown; neither site has been excavated, and the cropmark evidence alone cannot supply a date or function with any confidence.