The field is called "reen na gcarran", an Irish phrase meaning "point of the cairn", and that name is now the most substantial thing remaining of a cairn of earth and stone that once measured roughly four metres across and stood nearly two metres high. The monument itself is gone, taken by two forces that between them have erased a great deal of prehistoric Ireland: coastal erosion and deliberate removal by a landowner.

A cairn of this kind, a mounded structure built from earth and stone, would typically have served a funerary or ritual purpose, marking the landscape in a way that communities continued to acknowledge for generations, often long after the original meaning had blurred into local custom or legend. At Caherkeen, local information recorded that the cairn partially collapsed into the sea as the cliff edge retreated, and that whatever remained was subsequently cleared away. The exact age of the monument is unknown, and no excavation appears to have taken place before it disappeared. What survives is the field name, a small piece of linguistic memory that outlasted the physical structure entirely, preserved in the Irish habit of naming land after what was once visible upon it.

There is nothing to see at the spot itself, which makes the place an odd kind of historical site, defined entirely by absence. The cliff above Coulagh Bay remains, and the view north across the water would have been the same view that whoever built the cairn chose deliberately. Whether the position was chosen for visibility from the sea, for a prospect over the bay, or for reasons no longer recoverable, the choice of that particular edge suggests the monument was meant to be seen or to see. The field name is the last trace of that intention.