The rath at Gardenfield, Co. Limerick, does the opposite. It sits in level pasture, quiet and almost apologetic, its circular enclosure measuring forty-three metres across and its surrounding bank rising barely a metre above the ground outside. To walk past it without knowing what to look for would be easy. To walk past it knowing would be harder.

A rath is the Irish term for a ringfort, the most common type of early medieval settlement in Ireland, typically dated to somewhere between the sixth and tenth centuries. These were everyday places, farmsteads enclosed by earthen banks for the purposes of keeping livestock in, and perhaps keeping cattle raiders out. The Gardenfield example follows the standard form: a roughly circular area enclosed by an earthen bank with an external fosse, that is, a shallow ditch dug to provide the material for the bank and to add a further barrier. Here the bank stands about 0.6 metres above the interior ground level and 1.2 metres above the base of the fosse on the outside, with the fosse itself measuring around 2.4 metres wide and 0.4 metres deep. What makes this particular site quietly interesting is the way the bank has been absorbed into the surrounding field boundary system along its north-north-east to north-west arc, the kind of pragmatic recycling of ancient earthworks by later farmers that happened all across the Irish countryside and which tends to blur the distinction between the ancient and the merely old.

The interior remains level and under pasture, as recorded by Denis Power when the site was compiled for the record in August 2011, which means there is nothing to see inside beyond the grass itself, though the circularity of the enclosure becomes legible once you are standing within it. Access would be a matter of locating the relevant land and seeking permission from the landowner, as with most such sites in agricultural fields. There are no visitor facilities and no formal path. The best approach is simply to walk the perimeter slowly, noting where the bank thickens into the existing field boundary and where it reasserts its older, rounder logic.