This is a list of Royal Observer Corps (ROC) nuclear monitoring posts incorporated into the United Kingdom Warning and Monitoring Organisation (UKWMO). List of Royal Observer Corps / United Kingdom Warning and Monitoring Organisation Posts (A–E) List of Royal Observer Corps / United Kingdom Warning and Monitoring Organisation Posts (F–K) List of Royal Observer Corps / United Kingdom Warning and Monitoring Organisation Posts (L–P) List of Royal Observer Corps / United Kingdom Warning and Monitoring Organisation Posts (Q–Z) Notes:- 1. Many of these underground bunkers still exist under private ownership, permission of the owner is paramount before attempting to locate them. 2. With a few exceptions the surviving bunkers are in varying states of dereliction and are unsafe. 3. Counties listed are contemporary which may differ from present counties. data from:- See also Aircraft recognition Operational instruments of the Royal Observer Corps AWDREY Bomb Power Indicator Ground Zero Indicator Fixed Survey Meter Four-minute warning Royal Observer Corps Medal Skywatch march RAF Bentley Priory Volunteer Air Observers Corps (Australia) List of ROC Group Headquarters and UKWMO Sector controls References Obs World War II sites in the United Kingdom Operation Overlord Cold War military equipment of the United Kingdom Cold War military history of the United Kingdom