This stone is a doddle to find, at the meeting of two paths/tracks/roads with Arrow stones and cairns also very close by.
I wonder if Idwal got any feedback from the Gwynedd Archaeological Trust or if he contacted them at all. I'm quite convinced about it, but only quite. There is another stone about twenty yards away, of which Ive included a couple of pictures of it. Both stones seem to have some smaller stones at it's base but without digging impossible to tell if their packing stones