What was once a circular enclosure, roughly thirty metres across, has been absorbed so completely into the surrounding tillage land that nothing remains above ground to mark it. It is the kind of place that rewards attention to old maps rather than to the landscape itself.

The enclosure appears clearly on the first edition six-inch Ordnance Survey map of 1840, recorded at approximately 33 metres north to south and 32 metres east to west. By the time the 1904 to 1905 edition was produced, it had already diminished to a raised, roughly circular area of around 28 metres by 27 metres, still discernible but shrinking. Circular enclosures of this type are common across Ireland and are generally understood to have served as ringforts, farmsteads enclosed by an earthen bank and ditch, typically dating from the early medieval period. At Moanmore, the slow erasure continued beyond that second mapping. Field boundaries to the north were removed at some point to consolidate the land into a single large field, and whatever earthwork remained was levelled into the ploughsoil. The site now exists only as a cartographic memory, preserved in the gap between two editions of a map.