No walls survive, no carved stonework, no grave slabs. What the ground holds instead is a raised rectangular platform, roughly forty metres long and fourteen metres wide, rising less than a metre above the surrounding land. At its southern end stands a solitary tree, and at the base of that tree sits a large boulder. According to local tradition passed down to the landowner, an altar once stood at this spot. The pairing of tree and stone as the last markers of a sacred site is a recurring feature of early Irish ecclesiastical landscapes, where memory clings to natural objects long after the built fabric has gone.

The townland name, Kilfelim, derives from the Irish Cill Feidhlim, meaning the church of Phelim, placing this site within a pattern of early medieval foundation common across Munster. The surrounding parish of Killeentierna takes its name from Cillín Tiarna, the little church of Saint Tiernach, and the whole area fell within the diocese of Ardfert, one of the older ecclesiastical divisions of Kerry. By the time the Ordnance Survey produced its six-inch maps in 1841, the church had already vanished, noted only as a site, its outline marked with a dotted line indicating a rectangular enclosure. When the Castleisland District Archaeological Survey visited in 1986, the platform matched that outline closely, suggesting the earthwork has remained largely stable across at least a century and a half. The tree and boulder recorded then were still visible in satellite imagery taken between 2011 and 2013, their position unchanged at the southern end of the platform.