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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Wednesday, 6 May 2026

Six million views

An erratic boulder is a large stone that should preferably have been somewhere else......... I have not kept my eye on the ball, but we h...

Saturday, 2 May 2026

Pythagoras Klippe -- one of the "great cliffs" of the world

Google Earth 3D image of the 4,500 ft Pythagoras Cliff, located on the outside of the final bend in the fjord before it opens out into Hal...

Friday, 10 April 2026

Daw's miraculous statistics are worthless

Two small igneous erratics found near the higher path on Baggy Point. Altitudes c 45m and c 60m. These were in the view of Daw too high to ...

Monday, 6 April 2026

The Ramson Cliff erratic: much ado about nothing

The location of the Ramson Cliff erratic -- which was found at about 85m OD but which has now been moved to the lower edge of the field. Be...

Sunday, 5 April 2026

Lee and Roberson on ice limits

The inferred Anglian glacial limit, following Booth et al, 2015. The line on the south shore of the Bristol Channel is overall rather sen...

Friday, 3 April 2026

Tim Daw's anti-glacial hypothesis

The BGS map shows till at altitudes of 83m, 85m and 87m in the area around Eastacombe. We have no reason to doubt its accuracy. The locatio...

Friday, 27 March 2026

Meltwater canyons in Nathorsts Land, East Greenland

I'm intrigued by some rather strange valleys on the northern flank of Nordvestfjord in East Greenland, in Nathorsts Land. Two of then...

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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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