What makes it worth knowing about is precisely that absence. A circular enclosure, the kind of roughly ring-shaped earthwork that appears throughout Ireland and often dates to the early medieval period, was recorded on Ordnance Survey mapping carried out between 1841 and 1842. By the time the next detailed survey came around, in 1914 to 1915, a quarry had appeared immediately to the north of the site. At some point between those two moments, or shortly after, the enclosure was levelled entirely. No surface trace survives today.

Circular enclosures of this type are sometimes referred to as ring forts or raths, though those terms cover a broad range of forms and functions, from defended farmsteads to ceremonial enclosures. The Clooncolla example is identified simply as a circular enclosure, which places it within that general category without specifying further. Its disappearance is not unusual in the Irish landscape. Agricultural improvement, quarrying, and land clearance have together erased enormous numbers of such sites over the past two centuries, and the 1841 OS mapping itself captured many enclosures that would not survive much longer. The proximity of the quarry here is a plausible explanation for what happened, though the record stops short of stating so directly.

There is nothing to see at this location now. Its significance lies in what it represents about the archaeology of the wider region, a piece of the past that was mapped just in time to be recorded before it was lost.