Victoria Grover, a 59-year-old physician assistant from Maine, said she was shivering uncontrollably by the end of her ordeal, showing early signs of hypothermia.

Grover broke her leg about two miles from the trailhead while returning from a 6-mile round trip day hike. She holed up along a creek at 4,500 feet and slept under a poncho for protection at night. Daytime temperatures were in the 50s and 60s. That thin layer helped reduce the chilling effects of the wind on nights with freezing temperatures. Read more: Hiker Survives