Transcript for Teenager Survives Terrifying Fall From Cliff Above Sacramento River
We have an extraordinary rescue to tell you about. It involves this girl, who fell off a cliff. And managed to survive a head wound and a night of near-freezing temperatures. Reena ninan is on the story. Reporter: This is the reason I don't go hiking. This would happen to me. This is the reason. She's 15 years old, survived this incredibly dangerous fall, wearing just a tank top and sweats. Now, she's explaining how it all happened. Sierra capman is a very lucky girl. It was a miracle. Oh, my gosh. There's so many ways I could have died. And I didn't. Reporter: From her sacramento, california, hospital room, the 16-year-old girl is speaking out about her 19-hour ordeal that began when she fell from a cliff above the sacramento river after stepping on some loose rocks. I find of slid down to a place with some little bushes. And I was trying to get out of those. And I kind of tumbled the rest of the way down. Reporter: She landed on the rocks 80 feet below. With an open head wound, a fractured thumb and a bruised body, chapman tried to walk for help. But it was getting dark. And the temperatures around freezing. I had a sweater. But I had taken it off and kind of wrapped it around my head because my head was bleeding. Reporter: It wasn't until the next morning that chapman's prayers were answered by the sound of a passing boat. Bundled in towels and one of her saviors' jackets, chapman was rushed to the hospital. Lucky to be in those temperatures. Reporter: This morning, she's in good condition and better spirits, thanks to the rescuers. I don't know how to thank them. They saved my life, pretty much. Reporter: She is doing so well, she is expected to be relet'sed from the hospital this weekend. When it gets cold, the brain shuts down. The fact she had survival instincts is -- I think her family will keep her on flat terrain. Over to ginger zee.
This transcript has been automatically generated and may not be 100% accurate.