Was out hiking taking photos in northern Arizona, out of cell range in the winter. After climbing a nasty canyon wall I took two steps on the flat caprock and managed to roll my ankle in a tiny cupped depression. I narrowly avoided falling off a 50 ft cliff by leaning into my turning ankle. Ligaments torn, cartilage shredded, ankle big and black, I could not support any weight on it. It took 5.5 hours to crawl back to the car with vultures circling overhead. Crawling with a photo backpack on is no fun. I reached the truck as the sun set and it started getting really cold. My truck has a manual transmission, and I had to slam shift/use the other foot on the clutch. Oh, and it was a hard core 4x4 road with lots of steep slopes. I had several gates to open and had to get out and crawl to each gate to open/close.