It is easy to overlook, the kind of feature that rewards a careful eye rather than a casual glance, sitting in marshy terrain where the land falls away gently to the east, south, and west.

The platform sits within a ringfort, the type of enclosed farmstead that was the most common form of rural settlement in early medieval Ireland, typically consisting of a circular area defined by one or more earthen banks and ditches. Most ringforts housed a family and their animals, and it was common for the interior to contain a raised platform on which a timber or wattle structure would have stood. The slight elevation would have kept a floor dry in wet ground, and the location here, towards the southern end of a ridge in otherwise marshy land, suggests whoever chose the site was making practical calculations about drainage and exposure. The platform at Knockanarrigan is described only as a possible hut site, which reflects the genuine uncertainty involved in reading such subtle earthworks, but the form and placement are consistent with early medieval domestic use.