That entrance would have led into a souterrain, a type of stone-lined underground passage or chamber found across early medieval Ireland, typically associated with ringforts and used for storage, refuge, or both. The smith was confident. The traveller, unfortunately, never got around to checking.

The account comes from Keatinge, writing in 1958 to 1959, who recorded the smith's description at second hand. The smith and his neighbours apparently knew the place well enough to give directions, and the detail about the offset entrance, positioned away from the fort itself and accessed by descending stairs, is the kind of specific local knowledge that tends to survive only in conversation. Keatinge noted the claim but had no opportunity to investigate it himself. The most likely candidate for the fort in question is a monument recorded in the townland, aside from a ringwork in the south; that enclosure has since been levelled entirely, taking with it whatever access to the underground chambers, if they existed, it may once have offered.

What remains is essentially a story: a craftsman in Tipperary who knew his local landscape well enough to rank its underground architecture, and a written record of a visit that never quite happened. The site itself is gone.