In the winter of 1982, 29-year-old Barbara Jo Bobbie Burns (born Barbara Oberholtzer) vanished after leaving a local bar in Alma, Colorado, on January 6. She had been celebrating a promotion with coworkers and declined her husband’s offer of a ride, choosing to hitchhike home — a common practice in the area at the time. She never made it home that night.

Her disappearance sparked an investigation that eventually went cold, hampered by few witnesses and the limited forensic tools available then. The case came to be known locally as the Rocky Mountain Cold Case and left family and the community with unanswered questions for decades.

A distinctive orange sock was among the items linked to the scene. If anyone knew Bobbie, saw her that night, or has information about the orange sock or activity on County roads near Alma on January 6, 1982, authorities would welcome contact from anyone with information.