91. Barnton Quarry, Edinburgh. (NT 203 748)

Barnton Quarry was the Scottish Central Control wartime bunker. Following the outbreak of nuclear war, it would have housed the Scottish Secretary and members of the Scottish Office, police, the BBC, BT and others to form wartime government in Scotland. Further details and photographs are available at the following website www.subbrit.org.uk/rsg/sites/b/barnton_quarry.