VBB,

I think I side with Sanctuary on this.
On my visit to the top in the mid 90s, there was no erosion, as far as I could see, just a flattened grass path. However, there is now a huge increase in interest in prehistory, and that obviously places increased pressure on places like Silbury Hill.

The answer is, like Sanctuary said, to put in place a solid path, maybe made of local stone, in a spiral path, following the original grass path, to the top, in order to let people see for themselves. This would prevent any trouble with people doing illegal ascents, and let everyone be happy.

Silbury Hill has been kept secret from the general public for far too long. With the increase in interest, it's time the let the interest happen.

Cheers,
TE.