Ultra Trail du Mont Blanc

It’s hard to point to one thing that took out so many top contenders, much of it came down to a series of unfortunate events.

Tips on planning a trail running trip around Mont-Blanc.

Enjoy this 22-minute documentary by Los Angeles-based filmmaker Billy Yang, who chronicled the adventure.

The 7-minute film follows a Spanish runner as he tackles 100 miles.

More than 7,250 runners tackled one of the five races during UTMB week that ranged in length between 50K and 300K.

Laney lands on the UTMB podium, while Miller, Tollefson and Boulet shine in the CCC race.

Every level of competitor, no matter how fast or how experienced, winds up in awe of the mountains after running in Chamonix.

This special edition shoe is only available at the pre-race expo.

Chamonix, France, is ground zero for mountain running—and its vibe is spreading around the world.

The world's most prestigious trail running event aligns with new American sponsors.

Check out Emily Polachek's author page.

Click through these photos to get a glimpse of the sights and scenes from last week in the trail running valhalla of Chamonix, France.