A 33-year-old hiker ate bugs and melted snow for drinking water while stranded for six days in the Sierra Nevada wilderness after shattering his leg while rock climbing.
But his trip quickly turned into one of survival while he was hiking down the mountain.
As he grabbed a rock, a 100-pound boulder became dislodged and smashed into his right leg, breaking it in two spots. He said his leg bled profusely and eventually became infected.
For many, the possibility of not being able to reach help for three days would be overwhelming.
He cleaned his wound with water and created a splint using his hiking poles, an inflatable mattress and his belt.
"My whole thing was slow things down," he said. "Let's think methodically."
He said that decision helped save his life, and his leg.
After stabilizing his leg and dressing himself in layers of clothes, he made the slow trek to a safer area.
He slid down two snow fields and climbed to a stable surface, where he remained for four days.
For those days, he created snow cones, which he melted into drinking water, and focused on conserving his energy and keeping his wound clean.
Eventually he moved on to Lake Davis.
Along the way, he said he ate about 15 bugs, including crickets and ants, and drank stream water.
Tired and weak, he said he took a nap, woke up and tried again.
This time, he was successful.
Gregg Hein, who is recovering at a hospital near his hometown of Clovis, says he plans to make some changes to his hiking style: He won't be hiking alone, and will carry more supplies, map out his paths and cut back on the risky climbs.
He said he hadn't realized the burden he put on his family when he went on hiking trips.
"Everything is going to change," he said. "I value my family."