Police and search dogs are leaving a rural, wooded area -- east of Salem, Oregon -- without getting any closer to learning where missing West Valley City mother Susan Cox Powell is.

A 2 1/2 day search of the area has come up empty.

Powell has been missing since December 2009.  Previous searches for her have been conducted in both Utah and Nevada.

This time, police mobilized in response to an anonymous tip Susan's father, Chuck Cox, received last December.