A Friendship woman was uninjured Christmas Day when the vehicle she was driving struck a tree.  The deputy said 51-year old Valerie Holland was traveling south on 8th Avenue approaching the intersection at 8th Drive in the Town of Preston.  Due to the icy road conditions, Holland could not stop the 2006 Cadillac.  The vehicle slid through the intersection and struck a tree causing front end damage.  The passenger, 42-year old Jean Hilson of Friendship, was also uninjured.