Stonehenge and the Ice Age

How much do we know about Stonehenge? Less than we think. And what has Stonehenge got to do with the Ice Age? More than we might think. This blog is mostly devoted to the problems of where the Stonehenge bluestones came from, and how they got from their source areas to the monument. Now and then I will muse on related Stonehenge topics which have an Ice Age dimension...

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Friday, 6 February 2026

The Kokelaar Guide to erratic pebbles

The info below is extracted from the following excellent resource: https://kokelaargower.com/towards-stonehenge-the-anglian-glaciation-of-g...

The Contentious Reach

As mentioned in a previous post, I really like an idea put forward by Prof Peter Kokelaar in his blog -- namely the idea of the "conte...

Thursday, 5 February 2026

Updated marine isotope stages (MIS sequence)

In some of the recent articles I have been reading I have seen a few anomalies in the use of the MIS labels. This makes things somewhat con...

Friday, 30 January 2026

Erratic paradise

One of the great joys of our holidays in the Stockholm Archipelago is the exploration of small islands and skerries by kayak, discovering ...

Thursday, 29 January 2026

More contributions to the bluestone transport debate

I have been looking at Prof Peter Kokelaar's blog, and have discovered there a great deal of new evidence relating in particular to his...

Wednesday, 28 January 2026

The "no erratics" mantra is disingenuous and unscientific

One of the Berwick St James bluestone erratics -- limestone, but no less respectable and interesting than the Stonehenge igneous bluestones ...

Tuesday, 27 January 2026

More limestone erratic blocks in Wiltshire

The two Berwick St James stones, now on either side of a roadway A reminder that the "Meaden Cobble" is not the only piece of li...

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About Me

BRIAN JOHN: I'm a native of Pembrokeshire. I read Geography at Oxford University prior to working in the Antarctic for a while and then I spent 11 years teaching geomorphology in Durham University. In 1976 I moved back to Wales with my wife and family to a smallholding -- where we set up two small businesses, my wife as a candle-maker and I as a writer and publisher. We lived at the same address for 48 years but have now downsized and live in the town of Newport.. We couldn't live anywhere more beautiful. We have two sons and two grandsons. Apart from my great interest in Stonehenge and the bluestones, and local prehistory and folk traditions, I also write fiction -- and have now written eight volumes in the Angel Mountain Saga -- all tales about a feisty and imperfect heroine called Martha Morgan, who lived on the flanks of Carningli -- the mountain which lies between my home and the north Pembrokeshire coast.

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