In reclaimed pasture outside Ballincarroona in County Limerick, a possible barrow, the term for a burial mound typically raised over the remains of the dead during the Bronze Age or earlier, sits 170 metres southwest of a recorded enclosure. It leaves no impression on the ground that modern satellite imagery can detect, and it never appeared on any Ordnance Survey Ireland historic maps. Its existence as an archaeological feature rests almost entirely on one photographic survey conducted nearly four decades ago.

The site was identified during the Bruff aerial photographic survey of 1986, catalogued as Bruff 8, reference AP 5/2098. Aerial survey of this kind works by capturing crop marks or soil marks, subtle variations in vegetation growth or ground colour that betray buried features invisible at ground level. A filled-in ditch or a compacted mound can cause crops above it to grow differently, and under the right light and at the right time of year, a low-flying camera can catch what no walker would ever notice. That single pass over the Limerick countryside in 1986 preserved evidence of something that has since been absorbed entirely into the surrounding farmland, which was itself reclaimed pasture by the time the photograph was taken. No subsequent examination of Google Earth orthoimages has revealed any surviving surface trace.

For anyone curious enough to seek out the general area, the landscape around Ballincarroona is ordinary working farmland, and there is no visible feature to find at the site itself. The nearby enclosure, LI041-009, is the more firmly recorded monument in the vicinity and may give some orientation to the broader archaeological landscape here. The barrow, if that is indeed what the 1986 photograph captured, is now a feature that exists in an archive rather than in a field. What that photograph shows, and what the ground no longer does, is the kind of detail that makes aerial archaeology such a peculiar discipline, preserving the outline of things that have otherwise ceased, in any tangible sense, to be there.