Thanks much for that . I have been in one before same as pic shown . but was curios to kno if it was different etc or even bigger. I have been to Scotland's bunker and have been amazed by these since. I grew up in Argyll and Bute , and across from Bute on ardyne point there is a NATO (pol) petrol , oil, lubricant depot. Still in use today . can only be seen from air or at nite as is dubbed the secret city. . love to kno where there are more in Scotland. Were they for just in case or? Not sure what for ?? And why rannoch , ?