The slab is modest in scale, roughly half a metre tall and not quite that wide, yet its surface tells a quietly layered story. Among the various marks cut into it, two crosses are more deeply incised than the rest, and in the upper right quadrant of the largest sits a smaller, encircled Latin cross, nested within the larger design like a marginal note in a manuscript.

The slab is one element of a wider sacred complex known as the Well of St Brendan's Anointing. Along with the cross-slab, the site includes a holy well, three stone crosses, and what may be a leacht, a low cairn-like structure associated with early Irish religious practice, often used as a focus for prayer or commemoration. The whole ensemble sits towards the centre of the bog and looks out towards the Atlantic, just 400 metres to the north. The dedication to St Brendan, the sixth-century monastic figure traditionally associated with a legendary ocean voyage, places the site within a devotional geography that runs deep along the Iveragh Peninsula. Whether the crosses on the slab are genuinely early medieval or the product of later, perhaps post-medieval, piety is uncertain; archaeologists have noted that all of the incised crosses may be of relatively recent date, which complicates any easy reading of the site as straightforwardly ancient.

The site was documented as part of the comprehensive archaeological survey of the Iveragh Peninsula carried out by Aidan O'Sullivan and Jerry Sheehan, published by Cork University Press in 1996. That survey recorded the slab's dimensions and described the arrangement of its markings in detail, work that captured a place which sits unobtrusively in bogland, easy to pass without registering the quiet accumulation of marks and meaning gathered on one small, weathered stone.