Mar 221967
March 22, 1967
On March 22, at 5:30 PM, hundreds of Yungainos and tourists were visited by two UFOs that flew over the snow covered Huascaran mountains and the city of Yungay.
…a series of photos taken in the Huaylas Valley, near Yungay, Peru, by Augusto Arrando, on a hiking expedition in the mountains some 10,000ft (3050m) above sea level.
J. Richard Greenwell made strenuous attempts to locate Arrando, but failed to meet the man in person. Hope of authenticating the photos probably vanished forever when Yungay and most of its 20,000 inhabitants were buried by a gigantic avalanche in May 1970.[ref]Stevens, UFO Evidence, UFO Casebook, NICAP, UFO: The Complete Sightings, Peter Brookesmith via ICAR[/ref]