"She was still behind the wheel, pinned against the front end of the car and the side of the car," Jeff Merrill, a trooper with the Washington State Patrol, told "GMA." "All the air bags had deployed. But due to the crushing of the vehicle, she had been pinned in the vehicle and not able to exit the car on her own because of her injuries."
It took rescuers more than an hour to free her from the wreckage. Dehydrated and pale, she was airlifted to a Seattle hospital where her relieved loved ones were waiting.
"I'm just grateful she wasn't dead, kidnapped," her mother, Nancy Loe, said. "We didn't know where she was."
The remarkable discovery comes weeks after a Maryland teenager survived a similar plunge down a ravine. It took college student Julian McCormick two days to free himself from his car and more than a week before rescuers found him.
Many questions remain unanswered in the Seattle case, including when and why Rider went off the road, and how she survived. For now, though, her family is just happy to know she's alive. The Associated Press contributed to this report.