U.S. Army Yuma Test Station

The U.S. Army Yuma Test Station, now part of Yuma Proving Ground (YPG), is a U.S. government military installation founded in 1949 in Arizona, USA. It serves as a key testing site for weapons, munitions, missiles, and related technologies, including drones, weather balloons, and illumination rounds. In the context of UAP/UFO research, it is linked to an unexplained early 1950s sighting by personnel, reported to Sixth Army and Wright-Patterson AFB, with no resolution or further documentation. Speculation included Soviet missiles or early tests like the Honest John rocket (tested at YPG from 1958), but the event remains a mystery. YPG continues active operations, explaining public sky sightings as routine tests, not UAPs. No formal UAP research programs are associated.