Project 10073 Record — Worland, Wyoming, 11 Feb 67

This document details a Project 10073 investigation into a UFO sighting reported in Worland, Wyoming, on February 11, 1967. The primary witness, a local resident, reported observing a round, orangy-yellow ball of light in the northern sky for approximately 12 minutes. The object was described as being the size of an orange at arm's length and appeared to have a reflected canopy of light above it. The sighting was also reported by two Frontier Airlines pilots during their approach to the Worland Airport. Following an investigation by OONEBT at Hill Air Force Base, the phenomenon was officially identified as a hot air balloon. A letter from a local resident clarified that her fourteen-year-old son and his friend had been experimenting with hot air balloons made from plastic cleaning bags and birthday candles on the night of the sighting. The investigation concluded that the fourth balloon launched by the boys was the source of the reported object. The case file includes weather reports, a city map, and photographic evidence, which consisted of 8x10 black and white photos and color negatives.