Don't you just love the garbled nonsense that appears in the media when academics send spectacular and foolish press releases in their direction? More collector's items with regard to the Altar Stone having "possibly" come from Orkney, 900 km or 682 miles from Stonehenge. Assorted website articles have of course seized on the "Orkney connetion" as the latest great Stonehenge story. Not only do they regurgitate the outrageous claims made in the press release text (and the comments of one of the authors), but they invent all sorts of other stuff as well, including, in this one, a mention of the bulk of the bluestones coming from the Presley Hills in Wales.
Well, we always knew that the Presley family came from around these parts, but it's news that the family is so old that before it started on singing the bluestone blues, it was originally involved in the stone haulage business, all those millennia ago.