(North Plains, OR)  --  Police say they've found some items belonging to a missing 20-year-old woman in a rural area of Washington County.  KATU News reports someone came across the belongings of Allyson Watterson Saturday along Pumpkin Ridge Road, near the area where she disappeared more than two months ago.  Watterson was last seen on December 22nd with her boyfriend, Ben Garland.  Watterson's mother says they were headed to a friend's home when their car broke down and they got separated.