That inaccessibility gives it a certain quality, a place known mainly through the observations of others, measured and noted but never quite pinned down.

A ringfort, sometimes called a rath or lios, is a roughly circular enclosure defined by an earthen bank and an outer ditch, most commonly associated with early medieval farmsteads in Ireland. The one at Garryleagh is a good example of the form. An OPW inspection in 1972 recorded a near-circular area measuring approximately 40 metres north to south and 39 metres east to west, enclosed by an earthen bank with an external fosse (a defensive ditch) and a smaller outer bank beyond that. A causewayed entrance faces east, meaning a raised strip of ground crosses the ditch to allow access, and the interior slopes downward toward the north. Writing in 1932, the local historian Power described it as a "fine lios" positioned on the south side of the main road near the north-east angle of the townland, and tentatively floated the possibility that it might be identified with a place called Dun Droignein. That equation was offered cautiously, the sort of local name correlation that is suggestive rather than certain, and it has not been confirmed. The name Dun Droignein, if it applies, would suggest an enclosure associated with a thorn bush or thorny place, a common enough element in Irish place names tied to early fortified sites.

The site is on private land and permission to visit has been refused, so this is a ringfort that most people will only ever read about.