The stone itself is substantial and conspicuous enough, measuring around 2.25 metres along its longer axis, with a smooth, fractured surface. What makes it genuinely strange is that this surface was once a canvas: prehistoric people carved into it, and those carvings have spent so long exposed to weather and time that they now hover at the edge of visibility.

The decorated face of the boulder measures nearly three metres across and carries five traceable motifs. The most legible are two cup-and-ring carvings, the larger about 20 centimetres in diameter, the smaller around 13. Cup-and-ring marks are a form of prehistoric rock art found widely across Atlantic Europe; they consist of a shallow circular depression, the cup, surrounded by one or more concentric incised rings, and their precise purpose remains unresolved. Here, both are described as very faint. Elsewhere on the surface there is a gently curving groove roughly 35 centimetres long, a single cupmark, and an oval depression at the southern end that may carry faint traces of a surrounding ring, though this cannot be confirmed. The decorated face looks westward, while the boulder commands wide views south and south-west over the Owenalondrig River valley, with the mountains ranged around it to the north and south, and narrow slivers of sea visible at Acres Point to the south-east and Trá Chathail to the south-west. Whether that orientation or those views held any meaning for the people who made the marks is, like so much of this art, unanswerable. A second rock art site lies approximately 260 metres to the south-west, suggesting this part of the Kerry uplands held some significance in the prehistoric landscape, though what that significance was remains open.