A circular embanked enclosure, somewhere between fifteen and twenty metres across, was recorded on the Ordnance Survey's six-inch map of 1838. By the time the next comparable survey was made, in 1922, it had vanished from the cartographic record entirely. Today, in the pasture that covers the ridge, there is no visible trace at ground level.

The enclosure itself belongs to a type common across the Irish landscape: a roughly circular area defined by an earthen bank, of the kind that might have served as a farmstead, an animal pen, or a more ceremonially bounded space during any number of periods from the prehistoric through to the early medieval. Without excavation it is impossible to say more about this particular example. What the maps do tell us is that between 1838 and 1922 something changed enough that the feature either disappeared or became too degraded to warrant marking. Agricultural improvement, repeated ploughing, and the general levelling of earthworks across the nineteenth and early twentieth centuries account for the loss of a great many such sites across Ireland, and this one on its Mayo ridge appears to have followed the same quiet trajectory. The steeper ground to the south and southwest may have sheltered part of the site from disturbance for a time, but evidently not indefinitely.