It does not appear on the Ordnance Survey's historic maps at all, and only became formally documented when it showed up in aerial imagery captured between 2005 and 2013. For a stone that has probably stood in this field for several thousand years, that is a remarkably quiet existence.

The stone was noted by O'Kelly in 1944, who described it as a well-shaped slab measuring roughly six and a half feet tall, two feet three inches wide, and six inches thick, with a curving top edge that appears to have been deliberately worked rather than naturally formed. Standing stones, large single upright stones set into the ground by prehistoric communities, were erected across Ireland from the Neolithic period onwards and served purposes that remain only partially understood, whether as territorial markers, astronomical alignments, or focal points for ritual activity. What makes this particular example worth attention is its position: it sits on the northern edge of one of the densest concentrations of prehistoric monuments in Ireland. Lough Gur, one of the country's most extensively studied archaeological landscapes, lies just 650 metres to the south-east. Within a few hundred metres of this stone there is a prehistoric enclosure to the south-east and another standing stone to the east-north-east, suggesting this hillside was a meaningful and well-used part of that wider landscape.

The stone stands in working pasture, so access will depend on landowner permission and the usual consideration for farmland. The north-western slope of Knockfennell Hill is open country and the stone is visible in satellite imagery, which gives a reasonable sense of its location relative to the hill's ridge and the lake below. Visitors already exploring the Lough Gur area, which has a well-established heritage centre and several signposted monuments, are best placed to seek it out as part of a broader circuit. The curving, apparently shaped top edge is the detail worth looking for closely once you are standing beside it.