Glacial ridges, long sinuous mounds left behind by retreating ice sheets, were sometimes chosen by prehistoric communities as locations for burial monuments, perhaps for the prominence they offered in an otherwise flat landscape. This one is a carefully engineered structure: a raised central area nine metres across and eighty centimetres above the surrounding field, ringed by a bank nearly three metres wide, then enclosed by a fosse, or ditch, cut thirty centimetres below field level, and finally by an outer bank two metres wide containing stones within its fabric. The total diameter reaches twenty-four metres, making it a substantial monument by any measure, even if it sits quietly in the agricultural landscape without announcement.

Researchers have paid it some attention over the decades, though not always under the right name. Göran Burenhult, writing in 1980, catalogued it as Structure 25 under the placename Knocknahur North, a designation later corrected to Breeoge. Burenhult also placed it within what he designated Phosphate Field XIV, part of a broader investigation into soil phosphate levels across the area. Phosphate analysis is used in archaeology to detect traces of past human activity, since organic material from occupation, burial, or animal use tends to raise phosphate concentrations in the soil. In this case, only very small increases were recorded, which tells its own quiet story: whatever happened here left only a faint chemical trace. Timoney's more detailed description from 1984 supplies the structural measurements, giving a clearer sense of the monument's layered construction, concentric rings of raised ground, cut earth, and stony banking.