A circular earthwork of roughly thirty metres in diameter once occupied a low ridge in this part of North Galway, substantial enough to have been mapped during the third edition of the Ordnance Survey six-inch survey in 1932. By the time anyone looked for it on the ground, land reclamation had erased every visible trace. The ridge remains, the map remains, but the enclosure itself does not.

Circular enclosures of this general type are common across the Irish landscape, and many are the remains of ringforts, the enclosed farmsteads that were the dominant settlement form in early medieval Ireland, roughly from the fifth to the twelfth century. Whether the Lattoon example belonged to that tradition is now impossible to say with certainty. What the place-name does offer is a small clue worth noting. The local name contains the element 'Lisheen', a diminutive form of 'lios', the Irish word for a ringfort or enclosure, which would ordinarily point toward a cashel, ringfort, or similar monument of that class. The archaeological record, however, contains no corroborating physical evidence to confirm what the name implies, leaving the site in an ambiguous position where nomenclature and archaeology quietly disagree with each other.