The rath at Corgrig, in County Limerick, does the opposite. It sits in marshy, low-lying terrain on a gentle north-west-facing slope, a placement that immediately raises questions about what drew someone to enclose this particular patch of soggy ground perhaps a thousand or more years ago. Ringforts, to give a brief orientation, are roughly circular enclosures defined by earthen banks and ditches, built primarily during the early medieval period as farmsteads for individual families and their livestock. They are Ireland's most common field monument, numbering in the tens of thousands, yet each one has its own peculiarities of siting and construction.

The Corgrig example is oval rather than circular, measuring approximately 24 metres north to south and 17.5 metres east to west. Its defining feature is a scarped edge, meaning the ground has been cut and shaped to create a near-vertical face, rising around 1.2 metres and stretching some 4 metres in width. Beyond that lies an external fosse, essentially a ditch, roughly 2.25 metres wide and half a metre deep, followed by a counterscarp bank running from the west around to the north-north-east. The interior follows the natural gradient, sloping gently downward toward the north. The survey was compiled by Denis Power and uploaded to the record in August 2011, preserving these measurements before the site deteriorates further.

Accessing the site today requires some persistence. Much of the interior and the surrounding earthworks are covered in dense brambles and gorse, which makes a clear reading of the monument difficult at ground level. The marshy character of the surrounding land means the approach can be wet underfoot, particularly after rainfall, so sturdy footwear is advisable. The counterscarp bank, the low outer edge of the ditch system, is best observed along the western to north-north-eastern arc, where it remains most legible. Visiting in late winter or very early spring, before the gorse and brambles are in full growth, offers the best chance of making sense of the earthwork's shape. The scarped edge gives the clearest physical impression of the effort involved in constructing this enclosure, even in a location that seems, at first glance, an unlikely choice for a settled homestead.