That tension, between cartographic presence and earthly absence, is what makes it quietly worth noting.

A ringfort, or rath, is an early medieval enclosed settlement, typically circular, formed by one or more earthen banks and ditches. They are among the most common archaeological monument types in Ireland, numbering in the tens of thousands. The Lackaroe example was recorded on the Ordnance Survey six-inch map of 1842, depicted as a hachured roughly circular enclosure approximately forty metres in diameter. More unusually, a well was marked inside the north-north-east bank, suggesting the site had its own water source, a practical and sometimes ritually significant feature within such enclosures. At some point between that survey and the present, the site was levelled entirely. Rough-grazing land now covers the slope, and there is no visible surface trace remaining.