UPDATE:  The 60-year-old woman found Monday after surviving for four days in the California wilderness claims she became lost running from a man who’d brandished a knife before threatening to sexually assault her.

Authorities continued the massive search Monday for a hiker whose spouse said she and her dog “vanished” from a campground in California while he was parking their vehicle.

60-year-old Sheryl Powell disappeared near the Grandview Campground in the Ancient Bristlecone Pine Forest area of the White Mountains around 1 p.m. Friday, her husband, Joseph Powell, told the Inyo County Sheriff’s Office.

On Saturday, the couple’s son, Greg, wrote on Facebook that his parents “had found a campsite and she got out of the car with our dog to wait in the shade while he turned around and backed up the hill.”

Sheryl and Miley, a 5-pound Yorkipoo, were gone when Joseph returned about five minutes later.

Joseph Powell informed investigators that he had been searching for his spouse for an hour before sending an SOS through his satellite device.

Inyo County Search & Rescue and the office of the sheriff wrote in a Facebook post that they started to search for Sheryl immediately.

Son Greg Powell voiced frustration with investigators who he said refused to recognize the possible abduction of Sheryl.

“They keep insisting she just got lost,” he wrote, adding his mom didn’t have food or water and was simply setting up camp.

He said he thinks officials should look into a possible abduction, but as of Saturday, his father and his mother’s friends were only being investigated as suspects, something he called “absurd.”

“My parents have an extremely loving relationship and my dad (who has refused to leave the campsite) is on the verge of breakdown,” Greg wrote.

Anyone with information is urged to contact the Inyo County Sheriff’s Office at 760-878-0383, option No. 4.