A Washington State Patrol trooper was seriously injured in a patrol vehicle collision early Monday morning on Highway 142 near Olson Road west of Goldendale in Klickitat County.  According to WSP spokesman Will Finn, Trooper Anthony Maton was responding to a blocking one-car collision on Highway 142 when he left the road, struck a tree, and became entrapped. No other vehicles were involved in the collision.  Klickitat County Sheriff’s Office deputies were first on scene and immediately rendered aid.  Once freed from the vehicle, Maton was airlifted to Yakima Memorial Hospital, and was later transferred to Harborview Medical Center in Seattle.  Maton, a two-year trooper, sustained multiple broken bones and a serious head injury during the collision.  Finn says he has a long road to recovery but is in stable condition.  The collision is being investigated by the WSP Major Accident Investigation Team.