The clochán known as Clochán Dubh, an almost complete circular hut built using corbelled drystone construction, a technique in which stones are layered inward and upward without mortar until they meet at a point or dome, tends to draw the eye. But a short distance to its north-west lies what may be an equally ancient curiosity: a possible bullaun stone, modest in size and easy to overlook.

Bullaun stones are boulders or rock surfaces, often associated with early Christian or pre-Christian sites, that carry one or more cup-shaped depressions ground into their upper face. The purpose of these hollows has long been debated; they have been linked to ritual use, water collection, and the grinding of pigments or grain, and many are still visited as sites of local devotion. The example here measures roughly 87 centimetres in length and 63 centimetres in height, with a single depression in its upper surface approximately 24 centimetres across and just under 10 centimetres deep. Those dimensions are on the smaller end for bullaun stones, and the classification remains tentative, the word "possible" doing careful work in the archaeological record. The site was documented by J. Cuppage in the 1986 Corca Dhuibhne archaeological survey of the Dingle Peninsula, a survey that brought systematic attention to a landscape densely layered with early medieval and prehistoric remains.