Interesting about the internet and how things have developed.
I was going in adits and poking around sites by myself before I saw people dropping shafts on the internet, joined the local caving club and the rest is history.
I'm aware of the teething problems the internet caused with various unsavory types causing a rumpus by putting up photos of sensitive places publicly.
I think it's settled down now and those who were originally putting themselves and mines at risk have dropped off the radar and everyone else seems to have fitted into/been accommodated into the various local scenes and are aware of the various issues. It's most certainly why hardly anything gets put openly on the internet and sites which do, are pretty arcane and obscure.
Anyway, it's bought a lot of people closer together in the last few years and hopefully it will be possible to stop ignorant types destroying history and flouting the law.
Is the land public access?
Who was responsible for the cap job?
Are they approachable?
Clearly, it would be in their best interest to unblock it quicksharp and get some sort of grille put on so they don't get the bat-nutters sending them invoices.
I find it distinctly odd how it is perfectly acceptable to bulldoze and seal up unique history and geology. Yet our key are some poorly-adapted sodding creatures which aren't actually that endangered. At least Cornwall Council are coming around to doing things properly by considering the archaeology and scientific value of these sites....
It's a sad thing that little is done to control private "idiots".
Anyway, I'd go and have a word with the bloke first to see if he doesn't want to have a fine and if he does, get the bat nutters on the case.