Silbury Hill 180
Image by Nucleus
Silbury Hill

Let's Buy Silbury!

We could take our first step towards archaeo-terrorism, in a Guardian-reader sort of way, by fixing our own warning notices to Silbury's fence, to replace the ineffectual EH ones. It might reduce the numbers of trespassers a bit, which would at least be something concrete rather than spending all our time in talking mode.
Perhaps we should make it a point of honour for TMAers to take a notice with them when visiting there and to post a picture of it here.
It's a nice legal point as to whether we'd be doing anything wrong.
I like dual use efforts, so I reckon the wording ought to be always the same, something like "Danger - Keep Out - this hill has had no maintenance for 3.5 years".
I wonder what they'd do? Is it in the public interest to pull down warning notices?

Actually, Nigel, by drawing public attention to the fact that the hill is in a dangerous state because of neglect (if not negligence) you place EH in a difficult position. If someone was subsequently injured whilst trespassing on the hill, EH could not argue that they (EH) were unaware of the risk. You could claim that you had been trying to draw their attention to this risk, but they had ignored your warnings and had torn down your signs (if they had) that you had placed there in the public interest.