At Glebe in County Mayo, that is more or less the situation: an incomplete Bronze Age monument, partially enclosed by a modern iron fence on one side and an old stone field boundary on the other, occupying a gentle rise while a dwelling stands just to its west. What makes the site particularly striking is not any single stone but the density of the surrounding landscape. Three further stone circles lie to the north and east, meaning this part of Mayo preserves a cluster of monuments that speaks to sustained, deliberate prehistoric activity across a relatively concentrated area.

The circle itself is incomplete, made up of twenty-one stones, thirteen of which are set into the inner base of a low earthen bank roughly half a metre high, levelled along an east-to-west axis. The uprights, known in archaeological terms as orthostats, range considerably in size, from less than half a metre to just over a metre in height, and from under fifteen centimetres to forty centimetres in thickness. The internal space they enclose is nearly circular, measuring 17.4 metres north to south and 17.6 metres east to west, which gives a sense of the original ambition of the structure even in its diminished state. The site was catalogued in D. Lavelle's 1994 archaeological survey of the Ballinrobe district, an area that takes in the shores of Lough Mask and Lough Carra, and it is designated a national monument, number 146, held in state guardianship.