It is not especially dramatic to look at, standing only a metre and a half high and spreading eight metres across at its base, and much of it is now buried under a tangle of small bushes and scrub. But this modest ridge sits within a cluster of features that together suggest a landscape used, shaped, and marked by people over a considerable period of time. Alongside the linear earthwork, at least three circular enclosures of earth and stone can be made out on the reef, along with two stone mounds of noticeably different sizes. What precisely all of this amounts to, and when it was built, remains an open question.

Where erosion has cut into the southern side of the bank, its construction is visible: compacted earth packed with small fragments of limestone, the same rock that forms the reef itself. Limestone reefs of this kind, outcrops that sit proud of surrounding lowland, were frequently chosen as places of settlement, ritual, or boundary-marking in early Irish landscapes, partly because they offered elevation and visibility, and partly because the stone was immediately to hand. The panoramic views from this reef, described as especially wide to the south and west, would have made it a conspicuous and commanding spot. The earthwork was recorded by Michael Connolly during a survey of the Lee Valley area carried out in 1996 and 1997.

The site is heavily overgrown, and the circular enclosures and mounds require some patience to read in the landscape. The eroded southern face of the bank is the clearest point of access to understanding its fabric, offering a cross-section through the layered earth and limestone rubble that elsewhere stays hidden beneath the vegetation.