Roughly D-shaped in plan and measuring just under four metres at its longest, the structure is defined by a low stone wall that still stands to around sixty centimetres at its north-western side, with further stones collapsed inward across what would have been the interior. It is modest almost to the point of invisibility in the surrounding landscape of rough grazing and saturated peat.

Blanket bog, which forms over wet upland terrain where rainfall is high and drainage poor, tends to preserve and obscure in equal measure. Structures like this one, sometimes interpreted as seasonal shelters used by those tending livestock on high ground, can be difficult to date without excavation and are often passed over entirely. This particular site, located within the bounds of Connemara National Park on the Mweelin slopes, came to wider notice through the observation of Helen Riekstiņš, whose attention to the terrace and its stonework drew it into the record. Whether it served as a temporary shelter for a herdsman, a more permanent small dwelling, or something else altogether, remains an open question; the "possible" in its classification is doing real work.