Anybody ever come across this in their time at Rathgall? It's marked as a stone circle on Sheet 61. I was there yesterday and had a look around (for the second time) and could find no trace. Estyn Evans, in Prehistoric and Early Christian Ireland – A Guide, says in his entry for Rathgall "… 200 yd. E is a stone circle." Anthony Weir doesn't mention it, nor does Burl.