The site carries two distinct Irish names, which is itself a small puzzle. Dún Ceartáin suggests a fortified enclosure, dún being the Irish word for a fort or stronghold, often applied to prehistoric or early medieval defensive structures. Gleann an Ghad, meaning roughly the glen of the withe or the valley of the twisted branch, points to a different kind of place entirely, low-lying, wooded perhaps, defined by its terrain rather than any human construction. That a single location should hold both names hints at a layered history, though the specifics remain, for now, unrecorded in the public domain.