It does look big from below doesn't it. I think it's some atmospheric optical illusion though :-( It's about 25m in diameter and 2m high above the peat level. I would imagine that the peat is about 1.5m deep up there. Some of the impression of size comes from the two walls that have been built from the cairn as shelters. It was nice to see that the trig point hasn't been stuck on the top of it, too. Photos later (with loadsa cloud and no view.)