It is not a dramatic monument by any measure, just 0.95 metres tall and roughly rectangular in both plan and cross-section, leaning very slightly to the north. What makes it quietly interesting is not the stone itself but what surrounds it: within half a metre to its north sits a boulder burial, and roughly thirty metres to the south-east lies a burnt mound.

A boulder burial is a form of prehistoric funerary monument in which a large capstone rests directly on the ground or on low supporting stones, typically associated with the Bronze Age. A burnt mound, similarly ancient, is an accumulation of fire-cracked stone and charcoal, thought to represent the debris of repeated episodes of cooking or communal heating using water brought to the boil with hot stones. The standing stone itself is orientated roughly east-north-east to west-south-west, an alignment that may or may not be deliberate but is a detail worth noting in a landscape where such orientations are often discussed in terms of solar events. Together, these three features in such close proximity suggest this patch of hillside carried some sustained significance in prehistory, even if the precise relationship between them is no longer recoverable. The Beara Peninsula, where Ardgroom Outward sits, has a notable concentration of Bronze Age monuments, and this cluster on Tooreennamna fits into a broader pattern of upland activity across the region.