That kind of casual overlap is surprisingly common in Irish fields, but it still carries a particular quality of strangeness, the sense that something very old has been quietly absorbed into the everyday without anyone making a formal decision about it.

The site is a rath, the Irish term for a ringfort, which was the standard form of rural settlement in early medieval Ireland, typically dating from roughly the sixth to the twelfth century. A rath consists of a roughly circular area enclosed by one or more earthen banks, often with an accompanying fosse, which is simply a ditch dug to provide the material for the bank. At Gardenfield, the circular platform measures approximately twenty metres north to south and just over twenty metres east to west. Its defining feature is a scarped edge, meaning the ground has been cut away to create a sharp, near-vertical face, standing about 0.85 metres high and 1.25 metres wide. Beyond that edge lies an external fosse, roughly half a metre deep and just over two metres wide, though it is now buried under dense overgrowth and largely invisible to the casual eye. The site sits on a north-east-facing slope of a low rise, set within pasture. A field boundary has been built along the outer line of the fosse on the western and north-western side, and along the centre line of the fosse to the north and north-east, meaning the modern agricultural infrastructure and the ancient earthwork have become, in places, literally the same feature. The record was compiled by Denis Power and uploaded in August 2011.

The interior of the enclosure is level, dry, and clear of overgrowth, which makes it easier to read than many comparable sites where vegetation obscures the ground entirely. The fosse, by contrast, requires some imagination, given the dense growth concealing it. Visitors should be aware that the farm trackway bisecting the site is presumably still in active use, so this is working farmland rather than a managed heritage site. The clearest way to appreciate the overall shape is to walk the outer edge and look for where the field boundary betrays the line of the original ditch, a subtle but rewarding piece of landscape reading.