Medics and deputies responded to the scene, a timberland access road near Quilcene, at about 2:20 p.m. after receiving a report of someone trapped under a truck, said Sgt. Mark Apeland of the Jefferson County Sheriff's Office.
Emergency personnel managed to lift the truck off the girl and free her. She then was airlifted to Harborview Medical Center in Seattle, where she underwent emergency surgery. She is listed in critical condition.
A preliminary investigation found that an 18-year-old man had been driving the truck along the dirt road, owned by the state Department of Natural Resources, with the girl and two other teenage passengers in the open bed of the truck.
After traveling at high speed in reverse gear, the driver lost control and slid backwards into a ditch, which caused the truck to overturn onto its top, Apeland said.
Two of the teens in the back were ejected and thrown clear of the truck, but the truck landed on top of the 14-year-old girl. She was trapped beneath the vehicle for nearly a half-hour before she was rescued.
The driver and the two passengers who were thrown clear were taken to the hospital and released.
Neither alcohol nor drugs are suspected to be a factor in the crash; however the driver is pending possible criminal charges, Apeland said.