NORTH PLAINS, Ore. – Volunteers were back out Thursday searching for Allyson Watterson, the 20-year-old woman who went missing days before Christmas. Last Saturday (Feb. 29), some of Watterson’s personal items were discovered last week near Pumpkin Ridge Road in Washington County. Detectives have not released what those belongings are as the investigation is ongoing. Allyson was last seen on December 22.