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. See also Commandant Royal Observer Corps Aircraft recognition Royal Observer Corps Monitoring Post Operational instruments of the Royal Observer Corps AWDREY Bomb Power Indicator Ground Zero Indicator Fixed Survey Meter United Kingdom Warning and Monitoring Organisation Four-minute warning Royal Observer Corps Medal Skywatch march RAF Bentley Priory Aircraft Identity Corps (Canada) Volunteer Air Observers Corps (Australia) Ground Observer Corps (USA) Civil Air Patrol (USA) List of ROC Group Headquarters and UKWMO Sector controls Notes 1925 establishments in the United Kingdom Military units and formations established in 1941 Military units and formations disestablished in 1995 Obs World War II sites of the United Kingdom Operation Overlord Cold War military equipment of the United Kingdom