The enclosure at Carrickittle is, in the most literal sense, invisible, known to exist not because anyone can see it, but because an aircraft flying over the area in 1986 briefly revealed it from the air.

The site was identified during the Bruff aerial photographic survey of 1986, which picked out two enclosures, recorded together under the references LI033-148 and LI033-149, lying to the south of a broader archaeological complex containing twelve monuments. An enclosure, in this context, refers to a roughly circular or oval area defined by a bank, ditch, or wall, often associated with early medieval settlement or farming activity, though the function of any particular example can be difficult to establish without excavation. The Carrickittle enclosure sits approximately 120 metres east of the townland boundary with Cromwell, with its companion enclosure recorded 65 metres to the north. What aerial photography revealed, however, subsequent satellite imagery has not confirmed. Orthoimages taken between 2005 and 2012, and again on 20 September 2020, show no surface trace whatsoever. The monument exists, for now, as a record compiled by Martin Fitzpatrick and uploaded in April 2021, supported by Google Earth orthoimages rather than anything a person standing in the field could point to.

For anyone curious enough to seek it out, the site lies within what is described as improved pasture, meaning the land has been modified for agricultural use, which almost certainly explains why the feature has been so thoroughly suppressed at ground level. There is no marker, no earthwork, and no visible boundary to locate. The broader complex of twelve monuments nearby may offer more in the way of tangible remains, and that cluster would be the more practical focus for a visit to this part of County Limerick. The Carrickittle enclosure is perhaps most interesting not as a destination but as an illustration of how much archaeology persists in the Irish landscape in a state of near-total concealment, glimpsed once from the air and then quietly absorbed back into the ground.