A large underground military bunker located near RAF Corsham in Wiltshire, England. This structure, part of the Royal Observer Corps' warning and monitoring network, was constructed as an emergency relocation site for the British government during the Cold War. The bunker, which remains under private ownership, is one of the UK's largest and most well-preserved examples of post-war military fortifications.
It was designed to house critical infrastructure in the event of a nuclear threat, reflecting the UK's strategic preparedness during the Cold War era. While some sections of the bunker are still intact, access requires permission from the current owner, as it is considered a sensitive historical site. The structure's significance lies in its role as a Cold War-era defense asset, with its location in the Cotswold region highlighting its connection to the area's military history.