Olga Mauger was 21 and newly married when she vanished on September 17, 1934, while elk hunting with her husband, Carl Mauger, near Togwotee Pass, Wyoming. The pair had hiked above their camp; when Olga grew tired she stopped to rest and Carl went on to scout. He returned about 20 minutes later and found her gone with no trace.

The disappearance triggered an enormous search effort — more than 300 searchers, trackers, bloodhounds and local residents combed the rugged mountains. Olga’s lunch sack and the hand ax she reportedly carried were never found, and an early snowstorm forced searchers to stop. Rumors circulated that she was unhappy in her marriage and might have left to start anew; she was a skilled stenographer and reportedly had a small amount of money, but there is no evidence those theories are true. Carl was held briefly for questioning and later cleared.

The case remains unsolved.