The enclosure at Moig, in County Limerick, does the opposite. It has been entirely erased from the landscape, leaving behind nothing but a ghost on paper and a field of ordinary pasture on a gently north-facing slope.

What we know of this site comes almost entirely from cartographic evidence. The 1923 Ordnance Survey six-inch map recorded a roughly rectangular hachured area at this location, hachuring being the cartographers' method of indicating an earthwork or raised feature through short radiating lines drawn on the map face. The enclosure measured approximately fifteen metres north to south and thirty metres east to west, making it a modest but not insignificant enclosure of the type once common across the Irish midlands and south. Enclosures of this kind were typically used for settlement, agriculture, or the management of livestock, and some relate to early medieval activity, though without excavation it is rarely possible to assign a firm date or function. Denis Power, who compiled the site record uploaded in August 2011, noted that by the time of his survey the site had been levelled, with no visible surface trace remaining.

For anyone curious enough to visit, there is a particular kind of experience in standing at a site that has left no physical mark. The location is in pasture, and there is nothing on the ground to orient a visitor beyond the landscape itself, the slope, the aspect, the general position in the townland of Moig. The value here is less in what can be seen and more in what the map record preserves: the outline of something that once had edges and a purpose, now legible only to those willing to cross-reference an old six-inch sheet. If you are inclined toward that sort of archaeology, the OS historical maps available through the Ordnance Survey Ireland geoportal will show you exactly where the hachured rectangle once sat.