This enclosure at Cromwell survives not as an obvious mound or ditch but as a faint outline, one best read from above, visible in Digital Globe orthophotos taken between 2011 and 2013, where the geometry of a roughly circular form emerges despite the north-to-south field boundary that bisects it. On the ground, the site sits at the junction of two field boundaries formed by drainage channels, the kind of wet, poorly drained grassland that has a tendency to preserve earthworks precisely because nobody has found it worth the effort to plough them away.

The site was identified by Emmet Byrnes, who noted that it may form part of a conjoined enclosure, meaning two enclosures sharing a boundary or arranged in close physical relationship, with a possible access road or trackway running along its western side. A second enclosure has been recorded immediately to the north-east. An enclosure, in the Irish archaeological sense, is typically a roughly circular area defined by a bank, ditch, or both, and could have served any number of purposes across a long span of prehistory and early medieval settlement. Adding a further layer of interest, a spring well is depicted at this location on both the Ordnance Survey Ireland 25-inch map and the earlier OSi Cassini 6-inch map. Spring wells in Ireland frequently appear in association with early settlement, ritual activity, or both, and here the well may be connected to the earthwork and the possible trackway rather than being a coincidental feature. The record was compiled by Caimin O'Brien from details supplied by Byrnes, and uploaded in April 2021.

Because the enclosure is set in poorly drained ground and is not marked by any prominent upstanding feature, visiting in drier summer months will make movement around the field margins more manageable. The outline is not easily read at ground level, so consulting the orthophotos beforehand gives a useful sense of the rough form to look for. The junction of the drainage-channel field boundaries provides the clearest locating landmark, and the spring well, if still present on the ground, may offer a further reference point. The possible trackway to the west is worth examining as a separate feature, since linear approaches to enclosures can sometimes survive as slight rises or hollows even when the enclosure itself has been largely flattened by later agricultural activity.