Locations > Montana > Vaughn Vaughn, Montana UFO Sightings Vaughn, Montana, Missing Time Event UFO Sighting - I was visiting my dad in Vaughn the night of the 4th of July from California. I visited for a week, and the sky was cloudy every day but the early am ... 01/24-2023       Submit a UFO sighting for Vaughn, Montana: When did this happen (optional):