Details of Disappearance
Begay was last seen at Grand Canyon National Park sometime in August 1957. She'd left her home in Leupp, Arizona to go work at the park.
On the day of her disappearance, Begay and three friends left their employee housing and went to the no-longer-extant Grand Canyon Inn to have some drinks. She was last seen getting into a vehicle with two unidentified Hopi Indian men. She has never been heard from again.
When Begay didn't return to work, the park authorities fired her and boxed up her belongings. Her family realized she was missing when they came to visit and she was gone. They reported her disappearance to the Navajo Nation authorities, but the Coconino County Sheriff's Office's didn't learn about it for another year.
Some of Begay's friends thought she might have walked out of her life and started anew in the Los Angeles, California area and an acquaintance heard she had married, started a family and was living in Oregon. The police thought a voluntary disappearance was unlikely. She was in regular touch with her family while she was working at the park, and had no reason to run away.
The circumstances of Begay's disappearance are unclear. There has been no sign of her since 1957.