Stonehenge and its Environs 134
Image by RiotGibbon

Greetings, Cursuswalker,
Good question, and one that needs answering by the glaciated stone thoeorists.
I think another important question is why would the Stonehenge People, to coin a phrase, go all the way to Preseli to get stone? If they did, then there must be a reason. Otherwise, why not use the local sarsen, like they did for the trilithons? That is the key. Some people suggest the position of the Preselis in the west for the reason, and its association with that direction with life, death and ancestors. The truth is we will never be certain, as we can never ask the people who matter, nor did they leave written records.
It's all interesting stuff though. Perhaps we will never find out, which, on the positive side, is good for argument and discussion, for we can't argue with hard fact.
Regards,
TE.

Well one thing that springs to mind is Geofrey of Monmouths account that an already existing monument in Ireland was bought to England.
Some of the blue stones have tenon and Mortices on them so they must have formed an earlier monument of mini trilathons.

That is the frustrating thing about the Preseli origin. We KNOW there is a story behind their having been used in Stonehenge, and we KNOW we will never get to hear it.

As a Druid I find this very frustrating. We likes our stories we do.

So it is quite tempting to replace that story with one we can tell................hence glaciers did it.

I'm still sticking to the story about my Astra and its poor long-suffering roofrack :-)