The remarkable thing about this particular example is the absence of anything remarkable: no visible surface trace remains, and the original record contains no details whatsoever about its size, construction, or condition.

The souterrain sits within, or adjacent to, a ringfort, the circular earthwork enclosures that dot the Irish countryside in their thousands and represent the farmsteads of early medieval Ireland. The Lisladeen example entered the written record through the work of P.J. Hartnett, whose notes on Inniscarra Parish were later cited by McCarthy in 1977. That slim chain of references, a passing mention drawing on older fieldwork, is all that tethers this underground structure to the documentary record. Whether Hartnett observed an opening, a depression, or simply gathered local knowledge is not recorded.