This one does neither. A small circular enclosure on a north-east-facing slope at Elmhill in County Tipperary exists, as far as ground-level observers are concerned, not at all. It was only visible from the air, spotted in a 1973 aerial photograph, and even then it measured just about twenty metres across. Walk the field today and you would find nothing to mark where it lies.

The enclosure sits immediately south-east of a ringfort, the kind of roughly circular earthwork, defined by banks and ditches, that was typically used as a farmstead or defended homestead during the early medieval period in Ireland. The two features so close together suggest this corner of North Tipperary was once more organised and occupied than its present undulating farmland implies. What the smaller enclosure was for is not recorded; its relationship to the neighbouring ringfort is a matter of inference rather than excavation. A field boundary running north-west to south-east has since cut straight through it, which is how many such features are quietly erased, not by dramatic clearance but by the incremental reordering of land over centuries. The boundary that transects it today is simply the latest layer laid over whatever activity happened here long before it.