Though it rises only half a metre above the surrounding grassland, the reef gives it sufficient elevation to command clear sightlines in all directions, and to the south, on a clear day, one of the mountain-top cairns at Clahane is visible on the skyline. That visual relationship between monuments, one low and close, one high and distant, hints at a landscape that was once far more legible with meaning than the intensively farmed fields around it now suggest.

The mound itself is roughly circular, measuring around eleven metres east to west and ten and a half metres north to south, with a broad enclosing bank averaging four metres in width. The bank survives best on the northern side, where it still reaches its maximum height of half a metre, though it diminishes to around twenty centimetres on the eastern and southern sides. At the western side, a narrow break of just seventy-five centimetres marks what appears to be an original entrance. Within the enclosure, a central depression roughly two and a half metres in diameter sits about forty centimetres below the crest of the surrounding bank. In the eastern part of that interior lies a semi-recumbent limestone slab, approximately one and a half metres long, partially embedded in the ground and possibly still in its original position. A nearby site, recorded separately, has fared even worse with the passage of time and agriculture, surviving now only as a cropmark in a grassy field. The Ballyseedy mound itself, when surveyed by Michael Connolly in 1996 and 1997, had already been compromised by the tipping of tree trunks, concrete blocks, and other material into its interior by the landowner, damage that sits uneasily alongside the probable age and significance of what remains.