It is roughly circular, measuring about ten and a half metres across and less than a metre in height, and local tradition has preserved a name for it: Crucalachta. That name alone sets it apart. Whatever the precise etymology, the fact that a community held onto a specific designation for this unremarkable-looking hump in a field suggests it once carried more weight than its modest dimensions now imply.

Cairns of this type, stone mounds built up over centuries and often associated with burial or ritual in prehistoric Ireland, are scattered across the country, but many have lost their local identities entirely. At Scregg, the knoll on which this one sits commands open views in most directions, a quality that recurs at sites where human activity was clearly deliberate rather than incidental. The steep fall of ground to the south-west and west would have made the position conspicuous in the landscape, though a ridge to the south does overlook it. Whether the mound was raised here for the visibility it offered or for reasons now unrecoverable, the choice of this particular elevation rather than the flat ground around it was not accidental.