Debra Kay Manial was 29 when she vanished on December 12, 1982, near Dobbins, California. She had been with friends in the Oregon Peak area looking for a Christmas tree at the Indersol Tree farm and, as the group prepared to leave, reportedly walked ahead and never rejoined them.

Manial is described as a 29-year-old Caucasian woman, 5 feet 4 inches tall, about 140 pounds, with brown hair and brown eyes. Distinguishing marks include a horizontal appendectomy scar and a scar on a thumb knuckle. She was wearing several notable pieces of jewelry when last seen: a white gold necklace that breaks into two parts reading MIT and ZVAH, a gold-colored chain with a Pegasus pendant, a gold and silver colored band, a silver St. Peters and Paul class ring with a blue stone, a silver spoon ring, a wide silver-colored band engraved with crosses, and a belt buckle of blue Incolay stone showing two white unicorns with a silver rope design.

Very little else is publicly known about her disappearance. The Yuba County Sheriff-Coroner Department is the investigating agency. If anyone knew Debra, was in the Oregon Peak or Indersol Tree farm area that day, or has information about these distinctive items, please share what is known.