MENWITH-HILL · ACTIVE
RAF Menwith Hill
UNVERIFIED OPERATOR · NSA / GCHQ
Largest electronic monitoring station in the world, operated by the NSA on British soil. Intercepts satellite communications, telephone calls, and internet traffic globally. Multiple UAP incidents reported near the facility by British military and civilian witnesses, with some reports suggesting the objects may have interfered with station equipment.
Menwith Hill houses over 30 radomes and employs thousands of American NSA personnel alongside British GCHQ staff. The facility plays a central role in the ECHELON surveillance network.
Several UAP incidents have been reported in the vicinity of Menwith Hill. A 1980 incident documented by a British soldier describes a large glowing object hovering above the facility's radomes for approximately 20 minutes before accelerating vertically. The soldier was instructed not to report the incident.
In 1997, a British Ministry of Defence study on UAP included references to incidents near sensitive defence installations, without specifying which facilities. Menwith Hill is widely believed to be among them based on the geographic descriptions provided.