Enclosure, Lisrevagh, Co. Longford

There is nothing to see at ground level, no earthwork, no outline, no depression in the soil; only the historical map record suggests that anything is there at all.

The enclosure first appears on the 1837 edition of the Ordnance Survey six-inch map, where it is drawn as a roughly circular feature divided into two more or less equal halves by a field boundary running north-west to south-east. Circular enclosures of this kind are among the most common monument types in the Irish landscape; they range from prehistoric ringforts, which served as enclosed farmsteads, to later ecclesiastical or ceremonial enclosures, and distinguishing between types without excavation is rarely straightforward. By the time the 1914 Ordnance Survey edition was produced, the depicted outline had shifted, now shown running from south, through west, to north-east, suggesting either that the boundary had been partially obscured or reinterpreted by that point, or that the cartographers were working from different visible traces. The site sits on pasture at Lisrevagh, and the steady pressure of agricultural use over the intervening century and more has apparently levelled whatever remained above ground.