In the rough, rush-grown pasture of Lavy More in County Mayo, a circular embanked enclosure, roughly twenty metres across, is recorded on the Ordnance Survey six-inch map of 1838. By the time the next major edition was produced in 1920, it had vanished from the cartographic record entirely, levelled in the intervening decades. On the ground today, only a low rise with a slight fall toward the north and east hints that the land has been shaped by human hand. The outline of the enclosure itself cannot be traced at all.

Circular embanked enclosures of this type are a familiar, if often enigmatic, feature of the Irish countryside. They may represent the remains of a ringfort, a form of enclosed farmstead used from the early medieval period onward, or they may be older still. In this case, the specifics have been largely erased. What the 1838 map captures is a moment just before erasure, a circle drawn on a landscape that was already, presumably, in agricultural use. The townland boundary nearby follows the north-south course of a stream some 180 metres to the east, the kind of detail that suggests continuity of land division across centuries, even as the features those divisions once contained disappeared.