The uncertainty itself is telling. A clochan is a dry-stone beehive hut, built without mortar, its corbelled walls drawn inward course by course until they meet at a single capstone. They are among the most ancient forms of shelter in Ireland, associated primarily with early medieval monastic settlement, though many are difficult to date with precision. The qualification on the map, that ambiguous "possibly", hints at structures so reduced, or so absorbed back into the landscape, that even careful cartographers could not quite commit to a number.