This one is remarkable, in a quieter and more unsettling way, for what it no longer is. The ringfort known as Lisbaun, or Lios Bán in Irish, sat on a north-facing slope in Cappateige overlooking Brandon Bay in County Kerry, a position that would have given its original occupants a commanding view across the water. A ringfort is a roughly circular enclosure defined by one or more earthen banks and ditches, used primarily as a farmstead during the early medieval period. Lisbaun was a modest but complete example: approximately forty metres across and just over a metre high, built from earth rather than stone. At some point before the early 2010s it was levelled, and no visible trace of it now survives on the ground.

The site had been recorded in reasonable detail across several sources. The Ordnance Survey Name Books described it as circular, about two chains in diameter and four feet high. The second edition Ordnance Survey map showed a complete inner bank enclosing the circular interior, with a second outer bank present to the north only, suggesting either a partial addition or that the northern approach was considered most in need of reinforcement. A Ministry of Defence aerial photograph from 1949 captured the site from the air, and by that point only the inner bank was visible, the outer one presumably already reduced or obscured. Archaeological survey work by J. Cuppage, published in 1986 as part of the Corca Dhuibhne Dingle Peninsula survey, documented the fort under catalogue number 650, preserving at least a written record of what the landscape once held.

There is nothing to see at Cappateige now, and that absence is itself the point. The Irish countryside contains thousands of ringforts, many of them worn down, ploughed over, or quietly absorbed into field boundaries over the centuries. Lisbaun followed that pattern, though relatively recently. What the aerial photograph, the name books, and the survey together preserve is the memory of a place that existed for well over a thousand years before disappearing within living memory.