Mount of the Holy Cross is one of Colorado's more dramatic fourteeners — a rugged 14,000-foot peak in Eagle County, named for the snow-filled couloir on its face that forms a near-perfect cross each summer. It's also the place where, in September 2005, a hiker simply disappeared.

Michelle Vanek was 35, a mother of four from the Denver suburbs, and an experienced outdoorswoman. On 24 September 2005 she set out up the mountain with a neighbour. The two became separated somewhere on the upper slopes, and Vanek was never seen again.

What followed was one of the largest search and rescue operations in Colorado's history. Hundreds of volunteers and rescuers combed the peak's rocky terrain, scree fields and basins, but not a single trace of her turned up — no gear, no clothing, nothing. For nearly twenty years, the question of how a person can vanish from a mountain that thousands climb every year has puzzled both search professionals and investigators in Eagle County.

Writer Ted Katauskas, who is himself a member of the Vail Mountain Rescue Group, pieced the whole story together in a 2025 long-form article for Outside, covering Vanek's life, her love of the outdoors, and the decision to attempt one of the state's more unforgiving fourteeners late in the season. That story has now been adapted as a two-part audio read on the Outside Podcast, with the concluding instalment released this week. The finale digs into the scale of the rescue mission and the lingering unknowns that no one has been able to resolve.

For anyone who hikes in the Colorado high country, the story is a sobering reminder of how quickly things go wrong above treeline. Holy Cross is a serious objective: long approaches, loose rock, and weather that can turn in an hour, especially by late September when early snow and shortening days compress the margin for error. Even experienced hikers who know the mountains well can end up in trouble — and as this case shows, even hundreds of searchers working a peak for weeks may find nothing at all.

If you're planning to tick off Colorado's fourteeners, Holy Cross makes a rewarding addition to the list. Its standard route via Half Moon Pass is a long, steep day, and the trailhead sits at the end of a rough road near the town of Minturn, just south of Vail. Go early in the season, start before dawn, carry far more layers than you think you need, and tell someone exactly where you're going and when you expect to be back. Search and rescue in Colorado is largely staffed by volunteers, and your best protection is a plan that never requires them.

Whether you come to this story as a hiker or simply as a true-crime and mystery listener, it's a gripping piece of audio journalism — and a reason to think hard before your next big summit push.

Original reporting by Outside Online.