Pearl Christiansen, 71, a retired school teacher and resident of tiny mining town of Gleeson since 1920, witnessed several UFO's in 1968. She had detailed descriptions and some evidence. The objects hovered for hours one night. "They seemed to back off into the Valley beyond the peak," she said. It's not known if the the event was ever explained away as something else. A reporter inquiring about the incident at nearby Ft. Huachuca was told, "The Air Force has that responsibility."