It measures roughly 19 metres north to south and 30 metres east to west, rising only half a metre above the surrounding ground. Angular and rounded boulders break through the grass on its upper surface, and its eastern edge is unusually distinct, as though the platform was shaped or at least used with some intention. Whether it is natural or artificial, prehistoric or early medieval, remains genuinely uncertain.

The site is catalogued as Dysart 4, and archaeologist Aidan O'Sullivan, writing in 2004, described it as a possible prehistoric or medieval rock platform potentially connected to an early medieval royal settlement complex in the area. That complex is not a vague notion. Just 420 metres to the west-southwest stands Dún na Sgiath, a royal ringfort whose name translates roughly as the Fort of the Shield, and only 8 metres to the south lies a separate crannog. A crannog, for those unfamiliar with the term, is an artificial or partly artificial island, usually built from timber, stone, and brushwood, and used as a defended dwelling during the early medieval period in Ireland. The presence of a ringfort of royal status, a crannog, and this ambiguous platform in such close proximity suggests the landscape around this corner of Lough Ennell was once organised around a concentration of high-status settlement. Before modern drainage works altered the hydrology of the area, the platform would have been surrounded by roughly a metre of water, separating it from the shoreline by a stretch of wet, marshy ground, giving the cluster of sites an even more distinctly insular character than it has today.