Me and wife were walking today and were passing Eigiau res below the Carneddau and I took a shot across the lake of the slab/crag as it looks like it might have a few routes on it.
The slab is on the north west side of the res about mid way along - its not marked as the same location as Craig Bwythyn Eigiau in the log book.
Thought Id ask on here before making a specific trip to it.
http://s1227.photobucket.com/user/bechdan/media/DSC_0050.jpg.html
location approx
53.168017, -3.920095