The enclosure at Killevny is something slightly different. Sitting on a north-facing slope in County Galway, it traces a pear shape across the grassland, measuring roughly 85 metres along its longer axis and 72.5 metres across, a form that already sets it apart from the more familiar geometry of its counterparts.

The enclosure is defined in an uneven way, which adds to its interest. Along the arc running from the east-northeast through to the south-southeast, a proper raised bank forms the boundary, the kind of earthwork deliberately thrown up to mark an edge or provide some degree of enclosure. Elsewhere, the defining element is a scarp, a natural or shaped slope in the ground rather than a built-up bank, suggesting the site made use of the existing topography wherever it could. What makes Killevny particularly curious is what extends beyond the enclosure itself. Several low earthen banks radiate outward from it in different directions, towards the north-northwest, south-southeast, and south. These may represent field boundaries, drove roads, or divisions of land associated with the settlement or activity the fort once contained. More striking still is the trace of a trackway extending from the southwestern side, defined by two parallel earthen banks running for approximately 130 metres. Trackways of this kind, sometimes called hollow ways or approach roads, are not uncommon in association with enclosed settlements in Ireland, but their survival in readable form is relatively rare, and here the double-bank arrangement gives the feature an unusually clear profile in the landscape.

The site sits in open grassland and its earthworks remain in fair condition, meaning the main bank, the scarp, and at least some of the radiating features are visible to a careful eye at ground level, particularly in low winter light when shadows pick out slight changes in relief that a summer visit might miss entirely.