This one in Fantstown, County Limerick, requires a satellite and the right growing season to see at all. The site is a ditch barrow, a type of prehistoric funerary monument typically consisting of a low burial mound enclosed by a surrounding ditch, and it has left no trace visible to anyone standing in the field above it. Its existence was recognised not by archaeologists walking the ground but by analysts studying Google Earth aerial photographs, where the buried remains betray themselves as a cropmark, a faint circular shadow written into the grass by the differential growth of vegetation over disturbed or compacted soil beneath.

The cropmark was identified by the Archaeological Survey of Ireland from orthoimages taken on 20 March 2018. At that date, it appeared as a circular form approximately seven metres in diameter, intersected on its eastern side by a field drain running north to south. The site sits in pasture roughly 70 metres south of a stream that forms the townland boundary between Fantstown and Gibbonstown, and a second possible ditch barrow has been recorded about 120 metres to the northwest, suggesting the area may once have held a small cluster of related monuments. Notably, neither feature appears on the Ordnance Survey Ireland historic six-inch maps, meaning the site went unrecorded through all previous systematic surveys of the landscape. By August 2021, even the cropmark had vanished from view in later imagery, leaving no surface indication that anything lies below. The record was compiled by Martin Fitzpatrick and uploaded in September 2021.

There is nothing to see on the ground. The field is private pasture, and even in the most favourable conditions, the cropmark is only legible from altitude and only under specific combinations of soil moisture and crop stress, typically in early spring or during a dry spell. Anyone with an interest in the site is best served by examining the Google Earth orthoimages cited in the Archaeological Survey record rather than making a visit in any conventional sense. The value here is less about what can be observed in person and more about what the technique of aerial survey continues to reveal across the Irish countryside, where centuries of ploughing, drainage, and grazing have flattened or buried a great deal that was once above the surface.