One of the curving lines of pits for the posts of a circular Neolithic enclosure at Dunragit, during excavation in 2002. There are bands of smaller holes between each of the large ones, perhaps for a timber screen between the timber uprights.
Excavation by Manchester Unviversity in the early 2000s revealed it to be a large timber henge, where one circle of timbers had eventually gone out of use and been replaced by another. Some of the holes for the timbers were over a metre across and nearly a metre deep. They could have held timber uprights made from entire tree trunks up to 10m high, taller than Stonehenge. This is the largest timber henge known in Scotland.