On the ground it barely announces itself, a shallow circular earthwork so worn by time and drainage work that its outer bank is almost impossible to trace on one side. What makes it quietly remarkable is precisely this elusiveness: a prehistoric ring barrow, the type of low, circular burial monument defined by a surrounding ditch and outer bank, surviving here as little more than a suggestion in the soil.

The monument sits in gently undulating rough pasture in Garryduff townland, about 25 metres east of the boundary with Kilmacogue, in the barony of Coonagh. It was surveyed by the Archaeological Survey of Ireland in 2008, and the recorded measurements give some sense of how modest its remains are: the circular interior measures roughly 4 metres north to south and 5 metres east to west. The surrounding fosse, a shallow ditch, is around 2.55 metres wide and survives to a height of just 0.17 metres, best preserved along its south and west arc. The outer bank, ranging from 2.7 to 4.6 metres wide, survives most clearly from the north-east around to the south-west, but becomes broad and indistinct towards the south-east. The interior itself is notably dry, while the fosse holds water, and the northern and western sections of the monument have been disturbed by old drainage activity, leaving the ground there persistently wet. The survey record was compiled by Alison McQueen and Vera Rahilly, and uploaded in October 2020.

The monument's visibility shifts depending on how you look for it. An Ordnance Survey Ireland orthophoto taken between 2005 and 2012 shows a faint circular cropmark, the kind of ghost that only appears when crop or grass growth responds to buried features below. A Digital Globe image from 2011 to 2013 shows nothing at all. By 2018, a Google Earth image suggests the area had become part of an unplanted clearing within forestry, which may now obscure or alter the ground surface further. For anyone attempting to visit, the wet ground to the north and west is worth keeping in mind, and the best-preserved portions of the bank and fosse lie to the south and east of the monument. Given how faint the remains are, a dry summer visit, when cropmarks are most likely to be legible from above, offers the best chance of reading the landscape as it was once intended.