This is prehistoric rock art, a broad category that covers carved or pecked abstract motifs, typically cups, rings, grooves, and cup-and-ring combinations, worked directly into exposed rock faces or boulders. Ireland has a scattered but significant tradition of such carvings, most of them dating to the Neolithic or Bronze Age periods, and Tinnakeenly is one of the lesser-known examples in the Kilkenny landscape.

The site came to formal attention in 1986, when it was reported to the National Monuments Service by the National Museum of Ireland. Beyond that initial report, the documentary record is spare, which itself says something about how quietly these sites can persist in the landscape, known locally or stumbled upon, but slow to enter the official register. Rock art of this kind rarely generates the same attention as a passage tomb or a ringfort, yet it represents some of the oldest deliberate human marks to survive in the Irish countryside, made by communities whose names, languages, and precise intentions are entirely lost to us.