On August 8, 1975, Hank Williams Jr. set out to hunt mountain goats on Ajax Peak, on the Montana-Idaho border near Wisdom. He was 26, the son of a country music legend, and the heaviest of the three hikers crossing a late-summer snowfield near the summit. He stepped into his guide's footprint. Something under his right foot moved. What followed was a fall so catastrophic that the men who reached his body couldn't believe he was still alive.