That gap alone is worth pausing over. When the Ordnance Survey produced its six-inch mapping of County Limerick in 1840, this feature was either already too faint to record, or went unnoticed entirely. By the time the more detailed twenty-five-inch edition was published in 1897, it had been captured: a roughly oval earthwork, approximately 34 metres north to south and 19 metres east to west, defined by a low bank in what is now reclaimed agricultural pasture.

The enclosure sits just 17 metres east of a roadway that also serves as the boundary between Garrynderk North and the neighbouring townland of Ballincolly, and a related enclosure recorded separately lies around 200 metres to the north. Earthwork enclosures of this general type, defined by a raised bank or sometimes a fosse, were constructed across Ireland during various periods from the prehistoric through to the early medieval, and were used for purposes ranging from settlement and stock management to ritual. Without excavation, it is rarely possible to assign a precise date or function to one of these features from surface evidence alone, and the notes compiled here by Martin Fitzpatrick, uploaded in August 2021, make no such claim for this one. What can be said is that the monument has survived, if only just, beneath a covering of scrub.

The enclosure is not easily visible from the road. Its outline can be traced on Google Earth orthoimages, where the scrub vegetation that has colonised the bank distinguishes it from the surrounding pasture, but on the ground the feature is subtle. The land has been reclaimed and worked, which means the bank will not present itself as a dramatic earthwork. Visitors should look for a low, irregular rise in the field surface, likely overgrown, roughly oval in plan. The townland boundary road provides the clearest orientation point, with the monument lying a short distance to the east. There is no formal access or signage, and the site sits on private agricultural land.