The standing stone that once occupied a south-facing slope at Knockrour in County Cork belongs to the second category. It is gone, recorded only in a single set of measurements taken decades ago, and the pasture where it stood gives no obvious sign that anything was ever there.

In 1939, P. J. Hartnett noted the stone's dimensions: roughly 38 inches in height and 108 inches in circumference, described as irregular in form. Standing stones of this kind are among the most common prehistoric monuments in Ireland, typically dating to the Bronze Age, though their precise purpose remains debated. Some are thought to mark boundaries, burial sites, or astronomical alignments; many simply resist interpretation. This particular example was modest in scale, its irregular shape suggesting it had not been heavily worked or shaped before being set upright. At some point after Hartnett's visit, it was removed, probably in the course of agricultural improvement, a fate that has claimed a significant number of such monuments across the Irish countryside.