Irregularly shaped, partly held together by drystone revetment walling, it measures roughly six metres by six metres and rises somewhere between half a metre and two metres in height. Its function remains uncertain. It is the kind of thing that gets recorded, measured, and then left with a question mark.

The mound sits in the north-east corner of a field just north of an enclosure that forms part of a broader scatter of huts and unclassified structures spread across the valley of Fohernamanagh, or Fothair na Manach, which translates roughly as the hollow or terraced land of the monks. The name alone suggests an ecclesiastical past, and tradition reinforces it: St. Brendan is said to have founded a monastery here, and also to have paused at this place before setting out on the legendary sea voyage that would later bear his name. O'Donoghue noted the monastic association in 1895, and An Seabhac recorded the Brendan connection in 1939. Whether the mound belongs to that early Christian period, or predates it, or served some entirely mundane purpose within the valley settlement, is not known. What is clear is that it occupies an already layered landscape, one where enclosures, huts, and unclassified structures cluster together in a valley so remote that its isolation has itself been cited as evidence of monastic intent.