Mount Hooker rises nearly 12,500 feet, with a sheer north face that tests even elite climbers.

Reaching it requires days of trekking through unforgiving wilderness, where sudden storms and hidden dangers are constant threats.

Vanishing Without a Trace The two were last seen beginning their ascent.

Despite weeks of search efforts with helicopters, dogs, and rescue teams, no sign of them—or their gear—was ever found. READ MORE BELOW