Karen Lee Valdez-Blackburn, a 26-year-old vehicle mechanic assigned to the 90th Transportation Squadron at F.E. Warren Air Force Base, was last seen in Cheyenne, Wyoming on November 21, 1983. On the day of her disappearance, Valdez-Blackburn was observed loading her yellow Dodge Ram pickup truck which had a Colorado license plate with the number 4250JX. She reportedly told a friend that she was leaving and was believed to be heading to Denver, Colorado, to visit another friend.
Initially, her absence was not treated as a missing person case. A month after she was last seen, on December 21, 1983, the U.S. Air Force officially classified her as a deserter. However, as decades passed without any contact or information about her whereabouts, her status was eventually changed to that of a missing person. The Air Force has since acknowledged that it is unclear whether her disappearance was voluntary or not.
At the time of her disappearance, Karen Lee Valdez-Blackburn was described as a white female with blue eyes and brown hair, standing at 5'1" and weighing approximately 115 pounds. She also has family ties to Florida. The circumstances surrounding her disappearance remain unclear, and her case is now considered a cold case. The Air Force Office of Special Investigations continues to seek new leads in her case.Last Seen: Nov 21, 1983
