It does not appear on any Ordnance Survey historic mapping. It has no official designation. And yet the ground here rises in a well-defined arc, roughly one and a half metres high, its outer face littered with stones, some of them quite large, suggesting that whatever formed this curving scarp once had a structured, possibly masonry, edge.

The feature was identified by Celie O'Rahilly, an archaeologist working for Limerick Corporation, during a field survey of the area. Her description is precise: a curvilinear scarp visible from the south-west, west, and north-west, with the land to the east and south lying level with the surrounding field. The scattered stone on the exterior could represent the collapse or erosion of stone facing, the kind of material that would once have defined the outer edge of a formal enclosure. In Irish archaeology, an enclosure of this type typically refers to a roughly circular or oval earthwork that might have enclosed a settlement, a farmstead, or a place of ritual significance, depending on its date and context. Without excavation, none of that can be confirmed here, which is part of what makes the site quietly compelling. It was never mapped, never formally recorded before O'Rahilly's survey, and its origins remain entirely open.

The enclosure sits within Ashdown Student Village in Courtbrack, at the southern corner of an oil storage facility, bordering an undeveloped plot to the west and north-west. By 2018, a Google Earth image of the area showed the feature was no longer clearly visible from above, which suggests either vegetation cover, ground disturbance, or simply the difficulty of reading subtle earthworks from aerial photography. Anyone visiting should be aware that the surrounding area is an active residential and commercial site rather than open countryside, and access may be limited by the nature of the grounds. The record was compiled by Alison McQueen and Vera Rahilly and uploaded in June 2020, a reminder that archaeological discovery in Ireland often happens not on remote hillsides but in the unremarkable margins of ordinary urban life.