It sits within a cashel, a stone-walled circular enclosure of the kind commonly built as a farmstead or defensive residence in early medieval Ireland, and the OS six-inch map of 1842 marks it plainly as the site of Kilcameen Church. Yet no stonework, no foundation line, no visible surface trace of any ecclesiastical structure survives within the enclosure. The name endures; the building, if it ever existed, does not.

When the scholar and folklorist Eugene Curry passed through the area in 1839 as part of the Ordnance Survey's effort to record placename lore, he noted that locals called the spot Cill-Chainín, yet added the telling qualification that they did not themselves believe it had ever been a church. That ambivalence has remained unresolved. The antiquarian Thomas Johnson Westropp, writing between 1900 and 1902, proposed that the site might be connected to Caimín of Inniscaltra, a saint associated with the island monastery on Lough Derg dating to around AD 640. Robinson's map of 1977 rendered the name as Cill Chaimín, keeping that possible dedication alive. Within the cashel there is a children's burial ground, a cist (a small stone-lined grave of a type used across prehistoric and early Christian Ireland), and a cairn. About 34 metres to the south lies Tobar Chaimín, a holy well sharing the same saintly name, which suggests that whatever the nature of the site, some form of devotional significance attached to this particular rise in the pasture over a long period. The cashel itself sits within a large multiperiod field system, meaning the landscape around it accumulated human use across many different eras, layers of activity that the ground holds without making any of them entirely legible.