[stevetrewick]

I was under the impression that the RSGs were secret until 1963 when an anti nuke campaign group exposed them?

But then, hey, Britain. We have a load of secrets that aren't technically secret but we'd rather you didn't know and would take a dim view of you trying to find out. Especially true during the Cold War (see e.g. Backbone, etc).

[arethuza]

Good point - I'm not sure when Barnton stopped being the RSG - I had assumed it was well after '63.

There was a new RSG type bunker at Cultybraggan near Comrie but, with impeccable timing, that wasn't completed until 1990!