What stands at Laughil is a rath, a type of ringfort that would once have enclosed a farmstead within an earthen bank and ditch, serving as both a boundary marker and a modest defensive perimeter. Thousands of these structures were built across Ireland between roughly the fifth and twelfth centuries, and this one, measuring approximately 39 metres east to west and 33.5 metres north to south, falls within the typical range. What makes it harder to appreciate now is the degree to which later agricultural activity has reshaped it.

The original bank survives only as a low earthwork, and across the southern, western, and north-western arc it has been overlaid by a later field bank, the kind of boundary thrown up as farmland was divided and worked in more recent centuries. That superimposition is a common fate for raths in agricultural landscapes, where convenient earthworks were pressed into service as field boundaries without any particular thought for what lay beneath. At the south-western edge, there may still be a trace of the original external fosse, the shallow ditch that would have run around the outside of the bank, though it survives outside the field boundary in fragmentary form at best. Inside the enclosure, the ground has been further disrupted by the uprooting of trees, leaving an interior that has lost much of whatever stratified archaeology it might once have held close to the surface.