This is one of the best blogs I've ever read on TMA - http://www.themodernantiquarian.com/post/64709/weblog/ And among the many observations and fears this one caught my eye -
There was a time when you could walk up there along a narrow path, with a bank on one side, wildflowers existed and in particular I always noticed the little field pansy, so translucently delicate.
I used to love that little narrow path up to West Kennet Long Barrow; you had to go in single file, and there was something almost processional about it. I've taken lots of people up there who had never visited the barrow before and I would always say to them, as we climbed the path, "Don't look back yet." And then about halfway up I'd say OK, you can look back now, and they would turn and gasp at Silbury and the landscape spread out below.Now the path's gone. The two fields that it once separated ploughed into one with some ghastly plastic path from the Kennet to the barrow.
What next to go in the Natural landscape at Avebury...?