Some pictures of this dolmen can be found here.
Clearly it is in the garden of the big house, and I can state that it must have been obscured from my view at the top of the track by something, as if it was as in these pictures, it would have been clearly visible. I seem to remember a shed with logs perhaps now being there.
I still can't believe I didn't get to see this one ! It must have been there in disguise !
Something is not right. This message is just to keep things from messing up down the road