This one in Hammondstown, County Limerick, has no such visible presence on the ground. It exists, for now, almost entirely as a ghost in the grass, a rectangular cropmark that shows up in aerial photographs but has never appeared on the Ordnance Survey Ireland historic maps. That absence is itself telling: whatever this enclosure once was, it slipped through the record-keeping of previous centuries entirely.

The feature was first identified not through archaeological survey but through the practical work of infrastructure. Aerial photographs taken on 3 November 1984, during the Bórd Gáis Éireann Curraleigh to Limerick gas pipeline project, captured a rectangular anomaly in the fields at a scale of 1:5000. A cropmark is the faint difference in colour or growth that appears in vegetation above buried features, where buried walls, ditches, or filled pits alter soil drainage and nutrient levels, making crops grow slightly differently over them. Here, the cropmark measures roughly 33 metres north to south and 30 metres east to west, which places it comfortably in the range of an enclosed settlement or farmstead of some kind, though its date and function remain unconfirmed. The southern edge is intersected by a relic watercourse running roughly east to west, suggesting the landscape around it has shifted considerably over time. The enclosure was still visible on a Digital Globe orthoimage taken between 2011 and 2013, and again on a Google Earth orthophoto from 14 September 2019. A possible second enclosure has been noted approximately 100 metres to the west. The record was compiled by Fiona Rooney and uploaded in June 2021.

There is little to see at ground level. The site sits in reclaimed pasture, the kind of field that gives no outward sign of what lies beneath the soil. For anyone curious enough to seek it out, the most rewarding approach is through the aerial imagery rather than in person: the Google Earth photograph from 2019 offers a clearer view of the cropmark than a visit to the field itself is likely to provide. The feature is most likely to resolve clearly in aerial images taken during dry summers, when moisture stress in the vegetation emphasises the buried outlines below. This is a site that rewards patience with satellite archives rather than boots on the ground.