(Portland, OR)  --  An investigation is ongoing into whether a body found off a hiking trail is that of a missing Gresham woman.  Police say deputies found a woman's body off Hunchback Trail yesterday.  Over the weekend, police found the car belonging to missing 55-year-old Diana Bober at the nearby Zigzag Ranger Station.  A pair of hikers found her backpack abandoned on a trail nearly two weeks ago.  Bober has been missing since August 29th.  Police say they're awaiting confirmation from the medical examiner on whether the body belongs to Bober.