Now here is an interesting question: In the Neolithic, were glacial erratics more highly prized than monoliths of quarried rock?
This is relevant because, over the past decade or so, there has been a deliberate and coordinated campaign involving senior archaeologists and geologists designed to spread the belief that pillars of rock hewn from specially selected rock outcrops (such as Rhosyfelin and Carn Goedog) were highly prized if not sacred. Indeed, so the hypothesis insists, these "targetted" monoliths or orthostats were so special that they were transported for hundreds of kilometres across land and sea all the way to Stonehenge, involving logistical exercises on a scale out of all proportion when set against anything before or since. Thousands of men were involved, so goes the story, over many decades.........
The trouble with that bluestone quarrying and transport narrative, of course, is that it is unsupported by any evidence. Speculations and assumptions proliferate, but there is nothing solid on the ground which is capable of supporting the preferred story. The evidence of Neolithic quarrying at Rhosyfelin, Carn Goedog and Carn Meini does not withstand scrutiny, as my colleagues and I have demonstrated in the peer-reviewed literature. There is no sign of the preferential use of foliated rhyolite or spotted dolerite in prehistoric structures either in west Wales or on Salisbury Plain. "Preselite" -- a term used loosely for spotted dolerite -- does not seem to have been particularly valued for tool making or for any ceremonial purpose. The sophisticated "quarrying techniques" supposedly used in the "special" Pembrokeshire quarrying locations are unsupported by any evidence from the Neolithic or the Bronze Age anywhere in the British Isles. No cultural or technological links with Stonehenge can be demonstrated at megalithic sites anywhere in West Wales.
So the quarrying and man-hauling narrative is entirely unconvincing, and should be abandoned forthwith. What can we put in its place?
Well, the simple idea that large boulders, pillars and slabs lying around in the landscape were valued in some way simply because of what they were -- not because of where they might have come from.
Let's dig a bit deeper. First, the Gorsedd Circle at -- or immediately adjacent to -- the designated and demarcated site of the 2026 Llantwd National Eisteddfod. In a couple of recent posts I have been trying to uncover the truth about it. But the genuine stone circle at Croft consists 15 orthostats made -- as far as I can see -- of dolerite. These stones are clearly glacial erratics, picked up from within the local area. So they are "unhewn" and authentic stones, chosen and installed as a gentle dig against the use of fibreglass "imitation stones" used in the "official" stone circle on the Eisteddfod Maes.
The preferential use of "unhewn" stone for ceremonial or ritual use goes back a long way. I don't often quote from the Bible on this blog, but here goes:
"And if thou wilt make me an altar of stone, thou shalt not build it of hewn stone: for if thou lift up thy tool upon it, thou hast polluted it." (Exodus 20:25)
"And there you shall build an altar to the Lord your God, an altar of stones. You shall wield no iron tool on them; you shall build the altar of the Lord your God of uncut stones..." (Deuteronomy 27:5–6)"Joshua built an altar to the Lord God of Israel on Mount Ebal...........an altar of unhewn stones, on which no iron tool has been used" (Joshua 8:30–31)
Ironically, before becoming a romantic antiquarian and master forger, Morgannwg's actual trade was working as a professional stonemason and stonecutter.
During the 1700s, antiquarians like John Aubrey and William Stukeley popularized the theory that megalithic monuments were built by Celtic Druids. Iolo visited the massive, natural stone circles at Avebury in Wiltshire. Unlike the heavily shaped trilithons of Stonehenge, Avebury's stones are famously rough, wild, and unhewn. This deeply shaped Iolo’s vision of what an authentic "Druidic" ritual space should look like.
The point of all this is to show that in at least one ancient culture, natural boulders found in the landscape were accorded greater respect than quarried stone. It is perfectly possible that in glaciated British terrains erratic boulders -- often very impressive features in themselves -- were viewed as special or mysterious. Because glacial erratics contrast sharply with the local bedrock and sit isolated in landscapes, prehistoric and historical cultures across North America, Europe, and Asia routinely incorporated them into their spiritual systems.
Other sacred erratics across glaciated North America include:
Medicine Rocks / Prayer Boulders: Across the Upper Midwest (Minnesota, Wisconsin, and the Dakotas), solitary granite erratics on the limestone prairies were treated as Inyan (the primordial rock spirit in Lakota/Dakota cosmology). Native peoples left offerings of tobacco, painted them with vermillion, and sought visions near them.
Turtle Mounds and Effigy Alignments (New England): Indigenous communities frequently selected specific glacial erratics—propped up or stabilized intentionally on smaller stones—to serve as structural centers for ceremonial stone landscapes and effigy markers.
In glaciated northern Europe, the spiritual co-opting of erratics spans from the Stone Age to Christian-era folklore. During the Neolithic, prehistoric peoples across Denmark, northern Germany (for example the island of Rügen), and Poland harvested heavy erratics to build their megalithic tombs, passage graves, and dolmens. The stones were treated as permanent spiritual thresholds separating the worlds of the living and the dead. In Northern Poland and the Baltic region, large erratics like the Devil’s Rock in Bisztynek were revered as pagan altars. Natural depressions in the stones were interpreted as the footprints of gods, devils, or witches. Because they were considered sacred or cursed, local populations heavily resisted breaking them down for building materials, creating an early form of folk conservation.
In Swedish and Norwegian folklore, erratic boulders scattered across fields were explicitly called jättekast (giant-throws). They were believed to be weapons hurled by Frost Giants targeting Christian church bells, imbuing the stones with a dark, supernatural aura.
There is of course a tendency for people to see different, unusual, or striking stones in the landscape and and to wonder where they came from or why they are here rather than there. I think it's perfectly reasonable to suggest that when the Neolithic people living on Salisbury Plain wanted to put up the early stone settings at Stonehenge, they gathered up as many stones as they could find, showing particular interest in any stones that were "different" from the common sarsens which were widely distributed across the landscape. Maybe -- like the Neolithic tribes elsewhere in NW Europe -- they even invested these "different" stones with magical or sacred significance -- with those special qualities entirely unrelated to source of origin or distance carried. I agree with many others who have suggested that the builders of Stonehenge did not have a clue where the bluestones had come from.
If early visitors did not describe the bluestones as blue, when were they first called by the modern term "bluestones"?
ReplyDelete1867 -- the term was coined by Col Sir Henry James. Before that, the bluestones were simply descrobed as "foreign" or "anomalous" stones, and they were often not differentiated from the smaller sarsen stones. The term was not universally accepted until HH Thomas in 1923 published his famour paper.
ReplyDeleteKellaway thought that there might have been a folk memory of the stones being called "blau stones", and that James and others might have picked up on that.
ReplyDeleteTo the North East of Sedbergh in Cumbria there is a Dolerite intrusion known as Bluecaster side.
ReplyDeleteThe open question is where the erratic field was, and I suspect it was close to the monument rather than far from it. There would have been sarsen trains close too. Perhaps the Heel Stone came out of the nearby pit.
ReplyDeleteSo: when the Neolithic builders gathered up every block worth standing upright, and the later farmers moved larger, troublesome sar-stans to field edges over thousands of years, what would be left of that erratic field now?
Would there be anything at all? Hollows where giant stones had sat, later split into pillars, or would soil creep, ploughing and five thousand years of turf have closed them?
Would the small stuff survive: a scatter of scratched pebbles, an unsorted jumble of clay, sand and stones, foreign rock types in the ploughsoil that have no business being on chalk?
And does chalk itself help or hinder? Rainwater eats chalk, so I assume a stone socket does not stay crisp for long.
Put another way: is a stripped erratic field detectable at all: by hand borings, geophysics or just a careful walk over a fresh ploughing, or will the evidence have utterly gone?
Great points, Steve! Yes, I agree with you that Stonehenge was probably built where the stones were. Or where some stones were. the project mnanager probably asked all his mates to bring along any stones they wanted to get rid of, but at last they all ran out of energy and motivation. As for ancient glacial deposits, the answer may well lie within the clay-with-flints. We need much more comprehensive studies. Old glacial deposits are notoriously difficult to find. Hence all the confusion over the "ice free enclaves" like Jameson Land and Buchan. After much searching I have found only a small handful of locations in West EWales where I see something that might be called a cemented ancient till. Iron and manganese oxides do the cementing. As you suppose, chalk terrain is quite different -- very aggressive, with much solution going on over millions of years. We still do not fully understand the impact on superficial deposits.
DeleteSomething in your post I keep chewing on.
ReplyDeleteEvery stone in it is revered where it lies. Okotoks. The Medicine Rocks. Carn Arthur, perched up there, going nowhere. Nobody carried those in. They were holy because they were there, and because nobody could account for them.
Then we reach Stonehenge and the model changes without anyone saying so. Now the builders are out with rope and rollers, picking up useful lumps. But if a scattered erratic already carried that weight, hauling it into a setting is not quarrying by other means. It is collecting relics! And that only works if the ground they came off already counted for something mystical.
Which is where I think the 1966 pine posts get underused. Pine, standing, rotted where they stood, 10,500 to 9,650 years ago. The ditch comes in around 5,000 years ago (BC 3,000). Five thousand years between the two. Longer than the ditch is from us.
That is the bit I can't get past. Whatever mattered about that patch of grass mattered to hunters with flint, and it still mattered the best part of five thousand years later to farmers with antler picks. Nothing built holds that long. Timber rots. Turf closes over. Stories do not run fifty centuries with nothing to hang off.
But stone lying on the ground does. A scatter of odd blocks, wrong colour and wrong shape for the chalk, sitting there through the whole of it, putting the same question to everyone who walked past. To a hunter that is not geology. That is somebody's work. Some god's work, more like.
So I believe the erratic field was the first monument. And the posts, the ditch and the circle are all people tidying around grassland that was already mystical.
There is a BBC documentary in this that nobody has made. "The Five Thousand Years Before Stonehenge." The monument doesn't appear until the last ten minutes, and it is the better story for it.
Thanks Steve. More interesting points. I know I have argued that erratics might have been more revered than quarried sharp-edged rocks, but a part of me still thinks that opportunism was the key driving force. There's a handy stone on the ground over there -- we might as well make use of it. So I have a vision of the Stonehenge project manager just putting out a message to all his mates -- "interesting stones needed for my latest building project. if you have a nice stone, by all means bring it over on Thursday afternoon, and we'll stick it in the ground along with all the others......"
ReplyDeleteHello Brian, loved your books on the Bluestones. Where I live on the edge of the Carnmenellis granite in Cornwall, looking west across the low lying area towards the granite high of West Cornwall, sometimes the valley fills with low lying mist and it is not hard to imagine that being ice (eg during the most extensive Anglian glacial episode). This seems a simple explanation for the large erratic boulder near Porthleven. As this rock is believed to have come from Greenland or Norway, my question is: could the Stonehenge "Alter stone" be a glacial erratic from North Scotland (as has recently been claimed to be its source), or do you think it's more likely to have come from the eastern side of S Wales where I understand there are not too dissimilar outcrops?
ReplyDeleteLew -- thanks for the comment. yes, low-lying mist is a good analogy for the bahaviour of ice in the landscape.It will always fill the low-lying depressions first, before spilling over cols and crossing hilly obstacles. and there will always be a continuous slight gradient from ice source to outer ice edge. These basic rules are sometimes forgotten about, even by senior glacial geomorphologists who are trying to reconstruct past glacial extent etc. The Porthleven rock is an ongoing puzzle -- it must have had a very complex life, shifted hither and thither during the course of several glacial episodes.
ReplyDelete