What makes this particular monument a little unusual is its form: a ring-cairn, a type of prehistoric funerary or ceremonial structure in which a central cairn, a mound of loose stones, is encircled by a separate bank of stones with a gap or berm between the two elements. That gap, in this case roughly two metres wide, is part of the design rather than a sign of decay, and it gives the monument a more considered, almost architectural quality than a simple burial mound.

The cairn itself is substantial. Its flat top measures between five and seven metres across, its base extends to nineteen metres in diameter, and it stands between 1.7 and 2 metres high. Around it runs a grass-covered stone bank, three metres wide and between 0.3 and 0.5 metres high, which separates from the cairn body by that berm on most sides. On the western to northern arc, however, the bank sits immediately adjacent to the cairn with no gap between them, and on the eastern to southern arc the bank disappears entirely. Whether that asymmetry reflects the original design, later disturbance, or the particular logic of a tradition we no longer fully understand is not clear. There are also quarry holes visible within the cairn, suggesting that at some point in its long history, someone dug into it, possibly in search of stone, possibly in search of something else.