DrDan Thu Jun 14, 2012 7:17 am
PeteG wrote:I'm beginning to think that Silbury and Silbaby were built at the same time or one after the other.
If you imagine taking away the tree's and the road how different would the landscape look than the way we see it now?
Pete
I was thinking much the same, so had a look at the Old Maps website. The earliest map they list which clearly shows the area is 1886-7 and shows a small range of buildings in a small enclosure to the west of the site, with a well marked to the immediate south of the buildings. The river Kennet is shown, and seems to extend flow past the site and off to the south-east, but has an extension west along what would seem to be the southern boundary of the mound. The key thing to note here is that the Waden Mound is NOT shown in any way or form, but the road cutting nearby is shown (therefore the map-makers could and did show steeply sloping ground were it present).
The 1900 map is broadly similar, except for corrections of about 20' upwards on all the spot-heights.
From then on including the 1961 map, everything looks pretty much the same on the maps, and absolutely NO mound is shown.
The earliest time I can see the steep ground associated with the Silbaby mound is 1978; on this map the road cutting appears much larger as well, and the buildings on the west of the site disappear to be covered by the western edge of the dumped mound material.
My working hypothesis at present is thoroughly depressing: I think Silbaby is nothing more than the debris dump from an episode of road widening, dumped willy-nilly in no particular order. I don't think it is any older than 1960 at the earliest, and is possibly as young as the mid 1970s. This does not mean that there is nothing there; certainly in such a water-poor area as this the Waden Spring is worthy of further investigation, but I am highly dubious about the antiquity of the Silbaby mound.