The particular irony here is that this one sat just long enough on the cartographic record to be documented before the city swallowed it entirely.

The fort appeared on the first edition Ordnance Survey six-inch map of 1843, marked as a hachured enclosure, the conventional surveying shorthand for a raised or embanked circular feature, with an estimated diameter of around twenty metres. It sat on the north bank of the river Dodder in the townland of Clonskeagh, at that point still on the fringes of an expanding city rather than within it. Ringforts, which typically date from the early medieval period between roughly 500 and 1000 AD, were farmstead enclosures, the circular bank and ditch serving as a boundary marker and a modest form of protection for a household and its livestock. Thousands survive across Ireland in varying states of preservation, but urban expansion has erased a significant number, particularly around Dublin. This one was still considered significant enough in living memory to be included as entry number 25 in the Dublin City Development Plan of 1991, listed simply as "Clonskeagh, site of fort", which suggests the designation arrived too late to change anything practical.

The Ramleh Park housing estate now occupies the site, and there is nothing visible above ground that would indicate what lies, or what once lay, beneath it. The north bank of the Dodder at this point is accessible by foot along the river corridor, and while the landscape has been thoroughly suburbanised, the river itself retains something of its own character through this stretch. There is no marker, no interpretation board, and no physical evidence to locate. What remains is the record: a circle on an 1843 map, a line in a planning document, and the quiet fact that someone once built something here worth enclosing.