QUOTE(rezna @ Jan 26 2007, 07:44 PM) [snapback]1516870[/snapback]
the stones used to build stonehenge are from two different places. "derived from the Preseli Hills, 250 km away in modern day Pembrokeshire in Wales....The far-travelled stones, which weighed about four tons, consisted mostly of spotted dolerite but included examples of rhyolite, tuff and volcanic and calcareous ash. Each measures around 2 m in height, between 1 m and 1.5 m wide and around 0.8 m thick. What was to become known as the Altar Stone (1), a six-ton specimen of green micaceous sandstone, twice the height of the bluestones, is derived from either South Pembrokeshire or the Brecon Beacons and may have stood as a single large monolith."
Rezna. Did you make your own avatar with the UFO or was it assigned to you? Are you saying that you don't think the stones (or rather, bluestones) could have come from Wales? Unless some higher power helped; aliens, Merlin, whatever?
I've been to the main source of these bluestones (several other "quarries" contributed a stone or two) and studied the route to Stonehenge, first hand. At the bottom of the same hill there's a river that flows into one of the world's finest natural harbours. On the way there, it flows past a spot with the exact same green sandstone as the altar stone you mentioned.
The sea route to England follows a coast with many sheltered beaches, perfect for a slow safe trip with stops for favourable tides and weather. Once in the river (the Bristol Avon) there may, in those days, have been one spot with rocks and rapids, where they would have had to drag the stones for 200 metres or so to get around it. Now it's a weir. After that there's a 9km gap between two rivers, but the route goes up one gentle valley and down another. And at the very end of the journey there's a 3 km climb from a different River Avon up to the henge.
The only technologies you would have to assume were a big sledge to drag overland, and rollers under the sledge where the ground was soft. Plus a double sided dock so that a stone could be maneuvered right over the boat or raft. It can all be done with wood, grease and leather.
The route is very logical and do-able. The strongest thing that those guys needed was willpower. Any "magic" solution makes human beings smaller. There's no limit to what we can achieve, up to and including making ourselves extinct in a greenhouse world!