The kennel hole stone. I’d seen photos of this before but never realised it was so massive, 2.45 metres tall. De Valera and Ó’Nualláin visited the site three times and were unable to classify it with sufficient confidence. Quote; “... we were not convinced that the ‘kennel-hole’ was a deliberately contrived feature of the original tomb. It could well be accounted for as an accidental break.”