It does not announce itself. The ground rises only slightly, the enclosing bank stands just over half a metre tall, and a shallow ditch runs around the outside. To an untrained eye it might look like a natural quirk of the field. To anyone who knows what to look for, it is the remains of a rath, the Irish term for a ringfort, which was typically a circular earthen enclosure surrounding a farmstead during the early medieval period, roughly between the fifth and twelfth centuries. Tens of thousands of them once dotted the Irish countryside, and many survive, though often in states of considerable erosion.

This particular example, in the townland of Garryduff in the barony of Coonagh, was recorded on the Ordnance Survey 25-inch map edition of 1897, which noted its subcircular shape. When archaeologists from the Archaeological Survey of Ireland visited and formally measured the site in 2008, they found a slightly raised circular area approximately 26 metres north to south and 24 metres east to west. The enclosing scarp, the term for the sloped face of the earthen bank, measured around 3.1 metres wide and 0.55 metres high. Outside it runs a shallow fosse, or ditch, roughly 6.4 metres wide but only about 20 centimetres deep, much reduced over centuries of agricultural activity. A drainage channel running north to south has cut through the eastern side of the scarp, further disturbing what was already a worn monument. The survey was compiled by Alison McQueen and Vera Rahilly.

The site sits in rough pasture and is not formally accessible as a visitor attraction. The interior of the enclosure is level and covered in thick grass and rushes, a reflection of the waterlogged conditions that have both preserved and obscured it. Anyone curious enough to seek it out should be prepared for wet ground and an absence of signage or infrastructure. The earthwork is legible on Google Earth satellite imagery, where it was confirmed as a visible subcircular feature in images taken in November 2018, which gives a sense of how the monument reads from above even when it is subtle at ground level. The best time to visit would be late autumn or winter, when low vegetation makes earthworks slightly more readable across a landscape that otherwise swallows them whole.