subtitled: A New Study Suggests That the Altar Stone at Stonehenge Was Not Sourced From the Old Red Sandstone of the Anglo-welsh Basin as Previously Thought.Altar Stone – Image Credit : Professor Nick Pearce, Aberystwyth University
Used to be all guess and maybe and could be.
> The study will now shift the focus of sampling towards the ORS (Old Red Sandstone) formations in the Midland Valley and Orcadian Basins of Scotland, along with the Permian-Triassic sandstones in northern England.
i demand to know why the upper nile valley region was omitted from this candidate list?!
/s