When 16-year-old Theresa Ann Bier vanished in the Sierra Nevada Mountains with a Bigfoot obsessed man who claimed Sasquatch kidnapped her, it became one of California’s most bizarre missing person cases that remains unsolved to this day.

When 16-year-old Theresa Ann Bier vanished in the Sierra Nevada Mountains with a Bigfoot obsessed man who claimed Sasquatch kidnapped her, it became one of California’s most bizarre missing person cases that remains unsolved to this day.
Colorado River Expeditions, a rafting company operating on the Upper Colorado River, released video footage on May 26 that they claim shows a genuine Bigfoot encounter from their first river trip of the season on May 24, 2025. The company posted the video with the bold claim: “No CGI. No fakes. Just wilderness and raw footage.”