Donna Marie Larrabee was 16 when she was last seen in Rapid City, South Dakota, on November 17, 1976. A member of the Cheyenne River Sioux Tribe, she was living with her mother and other relatives and had plans to travel by bus to California to visit her father. It is unconfirmed whether she ever reached her destination, and she has not been seen or heard from since.

Described as a Native American female with black hair and brown eyes, she was 5 feet 6 inches tall and about 120 pounds at the time she disappeared. Her case is classified as an endangered missing person and is handled by the Rapid City Police Department; it is listed in national missing-person databases and is noted as the oldest missing person case on record in South Dakota.

The circumstances of her disappearance touch on the broader issue of missing and murdered Indigenous people. Does anyone have information about Donna’s last known movements or the bus trip she planned to California?