Very interesting read, I recently went to the Nundle- Hanging rock prase mine with my family in my 4x4, there is now a sign stating that only authorized vehicles can enter and there is camera surveillance, there was a ph no to ring but I did not have my mobile, this is crown land and so is the road, by the time I was at the sign it was difficult to turn around so we went in to the prase mine, lapidary clubs have been going to this site for years, do they expect elderly people to walk in, the locals did not know about this, even the volunteers at the Nundle mineral collection did not know, it may be a way off keeping people out with 4x4 vehicles, public liability, the people at the Nundle mineral collection said they would contact me but not yet.
Cheers mick B