The enclosure, approximately fifty metres in diameter, is defined by a low bank, the kind of feature that can be easy to overlook on the ground but becomes legible when seen from above.

What makes the site particularly interesting is its setting within a multiperiod field system, meaning the surrounding landscape preserves traces of agricultural and pastoral organisation from more than one distinct historical era. Enclosures of this general type, areas enclosed by an earthen bank, were used across early medieval Ireland and beyond for a variety of purposes, from settlement and farmstead protection to the management of livestock. Whether this particular example belongs to one phase of that wider field system or represents an earlier or later intrusion into it remains, for now, an open question. The enclosure was identified through aerial and satellite imagery, specifically Ordnance Survey orthophotography captured between 2013 and 2018, along with imagery from Digital Globe, which suggests it had not previously been formally recorded at ground level.

Ailwee Hill sits in the broader Burren region, a limestone karst landscape where the ground holds centuries of layered human activity. The combination of thin soils and relatively undisturbed upland terrain means that earthworks here can survive in reasonable condition even when they have gone unnoticed for generations. The enclosure at Boloona is a small but telling detail in that longer story.