Rosemary Kunst, 70, of San Anselmo, California, was last seen August 18, 2000, near Spirit Lake in the Marble Mountain Wilderness, Siskiyou County. She had been attending a spiritual retreat organized by the Earth Circle Association and set out on a solo hike carrying only a sandwich, trail mix, and her journal. She was seen walking toward a ridge in steep, rugged terrain and never returned to camp.

A large search involving more than 150 people, helicopters, and sniffer dogs turned up very little. The only physical clue recovered was a tuft of her hair in heavy brush near the lake. Authorities noted the area’s dense, difficult landscape and considered the possibility she became lost or injured, but no remains or other evidence have been found.

Rosemary had lost her husband in a car accident the year before; her family did not believe she was despondent or suicidal. Does anyone who spent time in the Marble Mountain Wilderness around August 2000 or who knew Rosemary have information that could help clarify what happened?