VERNONIA ?Oregon State Police troopers are continuing the investigation into the cause of Thursday afternoon's single vehicle crash along Highway 66 south of Vernonia.
At 2:38 p.m. a 1995 Honda Accord driven by Rhoda Laura Buckner, 74, from Vernonia, was northbound on Highway 47 near milepost 66 when, for an unknown reason, it traveled off the right shoulder and crashed head-on into a tree.
Buckner was pronounced deceased at the scene. She was using safety restraints and the car's airbags deployed.
Trooper Kim Waddell is the lead investigator.
OSP was assisted at the scene by Vernonia Police Department, Columbia County Sheriff's Office, Vernonia Fire Department, and the Oregon Department of Transportation. Highway 47 was closed about three hours while traffic was routed around the scene.