The Stonehenge moraine?

Now this is interesting! Yet more info coming out... and this time we have a shrubbery and a mound. It's interesting that Mike Pitts thinks the mound might have been "a natural geological feature" -- could this be the Stonehenge moraine that provided the incentive for the monument to be built here in the first place, and which also provided a ready source for at least some of the stones? That might sound rather fanciful -- but let's see what the evidence is.......

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From the Guardian newspaper, 4 Feb 2010
Stonehenge's secret: archaeologist uncovers evidence of encircling hedges

Survey of landscape suggests prehistoric monument was surrounded by two circular hedges

The Monty Python knights who craved a shrubbery were not so far off the historical mark: archaeologists have uncovered startling evidence of The Great Stonehenge Hedge.

Inevitably dubbed Stonehedge, the evidence from a new survey of the Stonehenge landscape suggests that 4,000 years ago the world's most famous prehistoric monument was surrounded by two circular hedges, planted on low concentric banks. The best guess of the archaeologists from English Heritage, who carried out the first detailed survey of the landscape of the monument since the Ordnance Survey maps of 1919, is that the hedges could have served as screens keeping even more secret from the crowd the ceremonies carried out by the elite allowed inside the stone circle.

Their findings are revealed tomorrow in British Archaeology magazine, whose editor, Mike Pitts, an archaeologist and expert on Stonehenge himself, said: "It is utterly surprising that this is the first survey for such a long time, but the results are fascinating. Stonehenge never fails to reveal more surprises."

"The time these two concentric hedges around the monument were planted is a matter of speculation, but it may well have been during the Bronze Age. The reason for planting them is enigmatic."

Pitts wonders if the hedges might have been to shelter the watchers from the power of the stones, as much as to ward off their impious gaze.

If the early Bronze Age date is correct, when the hedges were planted the Stonehenge monument already had the formation now familiar to millions of tourists, after centuries when the small bluestones from west Wales and the gigantic sarsens from the Stonehenge plain were continually rearranged.

The survey also found puzzling evidence that there may once have been a shallow mound among the stones, inside the circle. It was flattened long ago, but is shown in some 18th century watercolours though it was written off as artistic licence by artists trying to make the site look even more picturesque. The archaeologists wonder if the circle originally incorporated a mound which could have been a natural geological feature, or an even earlier monument.