Hilda Claudette Frazier was 45 when she was last seen in Riverton, Wyoming, on June 1, 1979. She was traveling to visit her father, who was dying, and her final known contact was a call to her siblings saying she was on her way to meet them. After that conversation she never reached her destination and has not been seen or heard from since.

The planned route, mode of transportation, clothing and other circumstances at the time are not widely documented, and there is little information about any investigative steps or leads that may have been pursued.

Does anyone from Riverton or the surrounding area remember Hilda Claudette Frazier, her travel plans that day, or have information that could help explain what happened?