There is nothing to see at ground level, which is precisely what makes the place worth knowing about. The absence of any visible surface trace is itself a kind of record, a marker of how completely a site can be swallowed by time and agricultural change.

A souterrain is a man-made underground structure, typically a series of dry-stone tunnels or chambers, built during the early medieval period in Ireland and used variously for storage, shelter, or refuge. This one at Ahane was associated with a ringfort, the circular earthwork enclosures that were the standard form of rural settlement in early medieval Ireland, and which survive in their thousands across the country. The ringfort here has been levelled, most likely through repeated ploughing, and the souterrain has gone with it. What we know of the passages comes from a single source: Broker, writing in 1937, who noted that three underground passages had been recorded as "formerly open", suggesting that even by that point they were already inaccessible, known only through earlier accounts or local memory. By the time that observation made it into the published record, the site had left no mark on the landscape at all.