This one in Graigacurragh, County Limerick, makes no such effort. It exists, for now, mainly as a faint oval shadow pressed into a field of grass, visible not to a passing walker but to an aircraft or a satellite. The earthwork has never appeared on Ordnance Survey Ireland's historic maps, which means it slipped through generations of official cartography entirely unrecorded, known only to the soil and, eventually, to the cameras above it.

The monument came to light through aerial photography carried out by the Archaeological Survey of Ireland in 2002. What the photographs revealed is a cropmark, the kind of subtle trace that appears when buried features, a filled-in ditch or the compacted remains of a bank, cause the grass or crops above them to grow differently from the surrounding field. Dry summers tend to bring these marks into sharper relief, as stressed vegetation betrays the buried archaeology beneath. The Graigacurragh mark is oval in shape, measuring roughly 30 metres on its northwest to southeast axis and about 41 metres northeast to southwest. It sits approximately 30 metres west of the townland boundary with Liskenneth West, and has since been confirmed on Ordnance Survey Ireland orthophotographs taken between 2005 and 2012, as well as on a Google Earth image dated 16 March 2016. The record was compiled by Fiona Rooney and uploaded to the Archaeological Survey of Ireland in April 2021. The nature and date of the monument remain unconfirmed; without excavation, the cropmark alone cannot say whether this was an enclosure, a ringfort, or something else entirely.

The site sits in pasture, which means there is no public access as a matter of course, and nothing on the ground would alert a visitor to what lies beneath. The most revealing view remains an aerial one, through the orthophotographs and satellite imagery that first brought it to attention. For anyone interested in how Irish archaeology is still being discovered, the Graigacurragh earthwork is a useful reminder that the landscape holds a great deal that has not yet been formally named or understood, and that a field of ordinary-looking grass is not always simply that.